Updated 9 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,762exploited flaws on CISA’s list

34added in the last 30 days

343new WordPress flaws this week

390,080entries in the database

765 results · page 1 of 16

Oct 21, 2026Simple Shopping Cart: Does not verify submitted product prices against a value only the site owner can setCVE-2026-104642 · WordPress plugins & themes · reported by WPScanLow 2.7
The Simple Shopping Cart WordPress plugin before 5.3.3 does not verify submitted product prices against a value only the site owner can set, allowing users with the Contributor role and above to register attacker-chosen prices for existing products, which any visitor can then use to add those products to the cart at that price.
Product
Simple Shopping Cart
Fixed in
5.3.3
What to do
Update Simple Shopping Cart to 5.3.3 or newer.
Full record and what to do →NVD record wpscan.com
Oct 21, 2026Simple Shopping Cart: Does not verify that a PayPal payment notification is for a payment received by the site owner's PayPal account in its default configurationCVE-2026-104641 · WordPress plugins & themes · reported by WPScanMedium 5.3
The Simple Shopping Cart WordPress plugin before 5.3.3 does not verify that a PayPal payment notification is for a payment received by the site owner's PayPal account in its default configuration, allowing unauthenticated attackers to have their orders marked as paid using a payment made to an account they control.
Product
Simple Shopping Cart
Fixed in
5.3.3
What to do
Update Simple Shopping Cart to 5.3.3 or newer.
Full record and what to do →NVD record wpscan.com
Oct 21, 2026Simple Banner: Does not correctly limit the capabilities it grants to the user roles an administrator allows to manage its bannersCVE-2026-107506 · WordPress plugins & themes · reported by WPScanHigh 7.5
The Simple Banner WordPress plugin before 3.3.3 does not correctly limit the capabilities it grants to the user roles an administrator allows to manage its banners, granting such roles the full administrator capability, which allows users in a low-privileged role to escalate their privileges and fully compromise the site.
Product
Simple Banner
Fixed in
3.3.3
What to do
Update Simple Banner to 3.3.3 or newer.
Full record and what to do →NVD record wpscan.com
Oct 20, 2026Seriously Simple Podcasting: Missing AuthorizationCVE-2026-112834 · WordPress plugins & themes · reported by PatchstackMedium 5.3
Missing Authorization vulnerability in Castos Seriously Simple Podcasting seriously-simple-podcasting allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Seriously Simple Podcasting: from n/a through 3.17.0.
Product
Seriously Simple Podcasting
Affected
up to 3.17.0
What to do
Affects up to 3.17.0. Update Seriously Simple Podcasting to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Oct 20, 2026Seriously Simple Podcasting: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2026-112833 · WordPress plugins & themes · reported by PatchstackMedium 6.5
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Castos Seriously Simple Podcasting seriously-simple-podcasting allows Stored XSS.This issue affects Seriously Simple Podcasting: from n/a through 3.17.0.
Product
Seriously Simple Podcasting
Affected
up to 3.17.0
What to do
Affects up to 3.17.0. Update Seriously Simple Podcasting to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Oct 18, 2026Simply Schedule Appointments: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2026-110382 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Stored XSS.This issue affects Simply Schedule Appointments: from n/a through 1.6.12.35.
Product
Simply Schedule Appointments
Affected
up to 1.6.12.35
What to do
Affects up to 1.6.12.35. Update Simply Schedule Appointments to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Oct 16, 2026Simply Schedule Appointments: Stored Cross-Site ScriptingCVE-2026-104000 · WordPress plugins & themes · reported by WordfenceHigh 7.2
The Simply Schedule Appointments plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'status' parameter in all versions up to, and including, 1.6.12.35 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The malicious payload is stored unconditionally because debug logging is enabled by default, and the debug-log viewer is accessible to anyone holding the site-wide Support PIN (an HMAC-MD5 of AUTH_SALT displayed in wp-admin), meaning the injected script will execute against the administrator's session during ordinary support or troubleshooting workflows.
Product
Simply Schedule Appointments
Affected
up to 1.6.12.35
What to do
Affects up to 1.6.12.35. Update Simply Schedule Appointments to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Oct 16, 2026FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler: Insecure Direct Object ReferenceCVE-2026-103525 · WordPress plugins & themes · reported by WordfenceHigh 7.5
The FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.7.0 via the 'order_id + billing_address_id (also shipping_address_id)' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to read and exfiltrate another customer's stored billing and shipping address PII — including street address, city, state, postcode, phone number, company name, VAT number, and legal registration ID — by enumerating sequential AUTO_INCREMENT order and address ID pairs. The id-equality guard intended to restrict address reuse is bypassed because the attacker controls both halves of the compared pair, and the unauthenticated AJAX entry point imposes only a soft rate limit of 5 requests per 60 seconds rather than any authentication or ownership check.
Product
FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler
Affected
up to 1.7.0
What to do
Affects up to 1.7.0. Update FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Oct 16, 2026FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler: Generic SQL InjectionCVE-2026-103518 · WordPress plugins & themes · reported by WordfenceMedium 4.9
The FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler plugin for WordPress is vulnerable to generic SQL Injection via the 'products[*].variants[*].<attacker-chosen key>' parameter in all versions up to, and including, 1.7.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with custom-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. On FluentCart Pro installs, non-administrator users assigned the Manager shop role also hold the products/edit permission and are therefore able to exploit this vulnerability without administrator-level access.
Product
FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler
Affected
up to 1.7.0
What to do
Affects up to 1.7.0. Update FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Oct 15, 2026Simply Schedule Appointments: Authorization Bypass Through User-Controlled KeyCVE-2026-110381 · WordPress plugins & themes · reported by PatchstackMedium 6.3
Authorization Bypass Through User-Controlled Key vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through 1.6.12.35.
Product
Simply Schedule Appointments
Affected
up to 1.6.12.35
What to do
Affects up to 1.6.12.35. Update Simply Schedule Appointments to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Oct 14, 2026SimplyRETS Real Estate IDX: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2026-105066 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in SimplyRETS SimplyRETS Real Estate IDX simply-rets allows Reflected XSS.This issue affects SimplyRETS Real Estate IDX: from n/a through 3.2.9.
Product
SimplyRETS Real Estate IDX
Affected
up to 3.2.9
What to do
Affects up to 3.2.9. Update SimplyRETS Real Estate IDX to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Oct 14, 2026SimpleForm – Form Maker to Chat Apps with Quiz, Poll and Multi Lead Notifications: Privilege EscalationCVE-2026-104748 · WordPress plugins & themes · reported by WordfenceCritical 9.8
The SimpleForm – Form Maker to Chat Apps with Quiz, Poll and Multi Lead Notifications plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.10.0 This is due to the `wp_ajax_nopriv_simpleform_wp_register` AJAX action lacking any capability check for role assignment and the `save_custom_fields_to_user_meta()` function using an exclusion list that omits `wp_capabilities`, combined with `get_form_settings()` returning a hard-coded defaults array that unconditionally enables meta writing regardless of the supplied `form_id`. This makes it possible for unauthenticated attackers to create a new Administrator-level WordPress account by supplying `wp_capabilities[administrator]=1` alongside standard registration fields. The nonce required by the endpoint is publicly emitted into the `front_end_data` JavaScript object on every front-end page via `wp_enqueue_scripts`, making it trivially obtainable by any unauthenticated visitor before submitting the malicious request.
Product
SimpleForm – Form Maker to Chat Apps with Quiz, Poll and Multi Lead Notifications
Affected
up to 3.10.0
What to do
Affects up to 3.10.0. Update SimpleForm – Form Maker to Chat Apps with Quiz, Poll and Multi Lead Notifications to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.svn.wordpress.org plugins.trac.wordpress.org
Oct 13, 2026FV Simpler SEO: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2026-54868 · WordPress plugins & themes · reported by PatchstackMedium 6.5
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in FolioVision FV Simpler SEO fv-all-in-one-seo-pack allows Stored XSS.This issue affects FV Simpler SEO: from n/a through 1.9.7.
Product
FV Simpler SEO
Affected
up to 1.9.7
What to do
Affects up to 1.9.7. Update FV Simpler SEO to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Oct 11, 2026Simple Membership: Does not avoid transmitting a newly registered member's plaintext password in a URL query stringCVE-2026-88785 · WordPress plugins & themes · reported by WPScanMedium 4.7
The Simple Membership WordPress plugin before 4.8.3 does not avoid transmitting a newly registered member's plaintext password in a URL query string when an optional auto-login-after-registration feature is enabled, exposing the credential in browser history and in web server, proxy, and CDN access logs to anyone able to read them.
Product
Simple Membership
Fixed in
4.8.3
What to do
Update Simple Membership to 4.8.3 or newer.
Full record and what to do →NVD record wpscan.com
Oct 10, 2026Simple Membership: Stored Cross-Site ScriptingCVE-2026-103427 · WordPress plugins & themes · reported by WordfenceMedium 6.4
The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'country' parameter in all versions up to, and including, 4.8.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Unauthenticated attackers may also exploit this vulnerability when the plugin's Enable Free Membership feature is turned on, as it permits anonymous front-end registration and profile submission.
Product
Simple Membership
Affected
up to 4.8.4
What to do
Affects up to 4.8.4. Update Simple Membership to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record downloads.wordpress.org plugins.trac.wordpress.org
Oct 10, 2026Simple Newsletter Plugin – Noptin: Stored Cross-Site ScriptingCVE-2026-103482 · WordPress plugins & themes · reported by WordfenceMedium 5.4
The Simple Newsletter Plugin – Noptin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noptin_fields[<custom_field_merge_tag>] (e.g. first_name)' parameter in all versions up to, and including, 4.3.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The attack chain requires a published campaign post whose body contains a [[subscriber.*]] merge tag; the unauthenticated attacker first POSTs the entity-encoded payload to the public manage_preferences form (which issues its own nonce on the same page), then pivots execution by embedding their confirm_key in a campaign preview URL sent to a privileged user via social engineering.
Product
Simple Newsletter Plugin – Noptin
Affected
up to 4.3.10
What to do
Affects up to 4.3.10. Update Simple Newsletter Plugin – Noptin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record github.com plugins.trac.wordpress.org
Oct 10, 2026Appointment Booking Calendar — Simply Schedule Appointments Booking: Incorrect AuthorizationCVE-2026-6723 · WordPress plugins & themes · reported by WordfenceMedium 5.3
The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Incorrect Authorization in all versions up to, and including, 1.6.11.11. This is due to the appointment update REST API endpoint not restricting which fields can be modified by token-authenticated customers. This makes it possible for unauthenticated attackers to modify admin-controlled fields on that appointment, including faking payment confirmation, reassigning the appointment to another user, and changing the service type.
Product
Appointment Booking Calendar — Simply Schedule Appointments Booking
Affected
up to 1.6.11.11
What to do
Affects up to 1.6.11.11. Update Appointment Booking Calendar — Simply Schedule Appointments Booking to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org wordfence.com
Oct 9, 2026Simple Payment: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2026-96332 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in yalla ya! Simple Payment simple-payment allows Reflected XSS.This issue affects Simple Payment: from n/a through 2.5.4.
Product
Simple Payment
Affected
up to 2.5.4
What to do
Affects up to 2.5.4. Update Simple Payment to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Oct 6, 2026Unauthenticated Cross Site Scripting (XSS) in WooCommerce Simple Auctions <= 3.0.10 versions.CVE-2026-42635 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Unauthenticated Cross Site Scripting (XSS) in WooCommerce Simple Auctions <= 3.0.10 versions.
Affected
up to 3.0.10
What to do
Affects up to 3.0.10. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Oct 6, 2026Subscriber Broken Authentication in Simple JWT Login 4.0.0 versions.CVE-2026-39793 · WordPress plugins & themes · reported by PatchstackHigh 8.8
Subscriber Broken Authentication in Simple JWT Login 4.0.0 versions.
What to do
Update the plugin to the newest version.
Full record and what to do →NVD record patchstack.com
Oct 6, 2026Unauthenticated Arbitrary File Deletion in Simple File List <= 6.3.11 versions.CVE-2026-39792 · WordPress plugins & themes · reported by PatchstackHigh 8.6
Unauthenticated Arbitrary File Deletion in Simple File List <= 6.3.11 versions.
Affected
up to 6.3.11
What to do
Affects up to 6.3.11. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Oct 5, 2026Simple Event Planner: Deserialization of Untrusted DataCVE-2026-97257 · WordPress plugins & themes · reported by PatchstackHigh 8.8
Deserialization of Untrusted Data vulnerability in PressTigers Simple Event Planner simple-event-planner allows Object Injection.This issue affects Simple Event Planner: from n/a through 1.5.7.
Product
Simple Event Planner
Affected
up to 1.5.7
What to do
Affects up to 1.5.7. Update Simple Event Planner to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Oct 4, 2026Simple Shopping Cart: Does not escape some of its settings field values before outputting them on an admin settings pageCVE-2026-104119 · WordPress plugins & themes · reported by WPScanLow 3.5
The Simple Shopping Cart WordPress plugin before 5.2.6 does not escape some of its settings field values before outputting them on an admin settings page, allowing high-privilege users such as administrators to perform Stored Cross-Site Scripting attacks, which is notably impactful on multisite installations where administrators do not have the unfiltered_html capability.
Product
Simple Shopping Cart
Fixed in
5.2.6
What to do
Update Simple Shopping Cart to 5.2.6 or newer.
Full record and what to do →NVD record wpscan.com
Oct 3, 2026Burst Statistics – Simple WordPress Analytics (Google Analytics Alternative): Improper Authentication leading to Account PersistenceCVE-2026-97343 · WordPress plugins & themes · reported by WordfenceMedium 4.3
The Burst Statistics – Simple WordPress Analytics (Google Analytics Alternative) plugin for WordPress is vulnerable to Improper Authentication leading to Account Persistence in all versions up to, and including, 3.7.1. This is due to the `maybe_load_shared_dashboard()` handler issuing a genuine WordPress session cookie for the `burst_statistics_viewer` account to any visitor presenting a valid share token via `wp_set_auth_cookie()`, while the plugin only blocks Application Passwords for the resulting `burst_viewer` role and does not restrict the core `/wp-json/wp/v2/users/me` password update endpoint or filter the `edit_user` capability for that account — leaving WordPress core's built-in rule that any authenticated user may update their own account fully in effect. This makes it possible for unauthenticated attackers to set an attacker-chosen password on the `burst_statistics_viewer` WordPress account, constituting a permanent takeover of that limited-privilege (`view_burst_statistics`) account that persists through share-token revocation, share-token expiration, and execution of the plugin's daily `cleanup_viewer_sessions()` routine. Exploitation requires that the attacker have o
Product
Burst Statistics – Simple WordPress Analytics (Google Analytics Alternative)
Affected
up to 3.7.1
What to do
Affects up to 3.7.1. Update Burst Statistics – Simple WordPress Analytics (Google Analytics Alternative) to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record github.com plugins.trac.wordpress.org
Oct 3, 2026Simple Membership: Unauthorized modification of data and sensitive information disclosureCVE-2026-97337 · WordPress plugins & themes · reported by WordfenceHigh 7.5
The Simple Membership plugin for WordPress is vulnerable to unauthorized modification of data and sensitive information disclosure in versions up to, and including, 4.8.3 via the resend-activation and email-activation endpoints. The endpoints are dispatched from SwpmInitTimeTasks::check_and_do_email_activation() on frontend init with no authentication, nonce, capability, or ownership check, and the recipient address used by SwpmRegistration::send_reg_email() is taken from an attacker-controlled $_POST['email'] parameter (overriding the member's registered address). This makes it possible for unauthenticated attackers to redirect an arbitrary pending member's activation email — and the follow-up 'registration complete' email containing the member's username and plaintext password — to an attacker-chosen address, and to then activate that member's account without their consent.
Product
Simple Membership
Affected
up to 4.8.3
What to do
Affects up to 4.8.3. Update Simple Membership to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Oct 2, 2026WP Statistics – Simple, privacy-friendly Google Analytics alternative: Reflected Cross-Site ScriptingCVE-2026-97652 · WordPress plugins & themes · reported by WordfenceMedium 6.1
The WP Statistics – Simple, privacy-friendly Google Analytics alternative plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via REQUEST_URI Query-Parameter Key in all versions up to, and including, 14.16.14 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Product
WP Statistics – Simple, privacy-friendly Google Analytics alternative
Affected
up to 14.16.14
What to do
Affects up to 14.16.14. Update WP Statistics – Simple, privacy-friendly Google Analytics alternative to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record github.com plugins.trac.wordpress.org
Oct 2, 2026Smash Balloon Social Post Feed – Simple Social Feeds for: Stored Cross-Site ScriptingCVE-2026-93756 · WordPress plugins & themes · reported by WordfenceHigh 7.2
The Smash Balloon Social Post Feed – Simple Social Feeds for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Facebook Comment Message via v-html in Admin Builder Preview in all versions up to, and including, 4.13.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that will execute whenever an administrator accesses the feed builder preview page. This attack requires only a Facebook account to post a comment on the connected Facebook Page, with no WordPress credentials needed; additionally, the use of v-show rather than v-if means injected HTML — including onerror handlers — is evaluated in the DOM even when the comment section is not visually displayed. When combined with the lack of URL validation in the cff_install_addon AJAX handler (admin/addon-functions.php), an injected script running in an administrator's session can trigger arbitrary plugin installation from an attacker-controlled URL, which may result in server-side code execution.
Product
Smash Balloon Social Post Feed – Simple Social Feeds for
Affected
up to 4.13.0
What to do
Affects up to 4.13.0. Update Smash Balloon Social Post Feed – Simple Social Feeds for to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Oct 1, 2026Simply Schedule Appointments: Sensitive Information ExposureCVE-2026-92245 · WordPress plugins & themes · reported by WordfenceHigh 7.5
The Simply Schedule Appointments plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.6.12.32 via the 'recursive' parameter. This makes it possible for unauthenticated attackers to extract customer PII — including names, email addresses, phone numbers, and custom form field data — stored in appointment records, as well as per-appointment public_token values. The leaked per-appointment public_token values also enable unauthenticated attackers to delete arbitrary appointments via the DELETE /wp-json/ssa/v1/appointments/{id} endpoint, which accepts the token as sole authorization.
Product
Simply Schedule Appointments
Affected
up to 1.6.12.32
What to do
Affects up to 1.6.12.32. Update Simply Schedule Appointments to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Oct 1, 2026Simply Schedule Appointments: Insecure Direct Object ReferenceCVE-2026-91109 · WordPress plugins & themes · reported by WordfenceMedium 6.5
The Simply Schedule Appointments plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.6.12.31 via the 'complete_group' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to disclose every co-booker's private per-appointment id_token (exposed as public_token) alongside their PII (name and email address), then use each leaked token to read, overwrite arbitrary appointment meta on, or cancel the co-booker's appointment via the same REST controller. Exploitation requires the attacker to possess a valid id_token for any single appointment within the targeted group booking.
Product
Simply Schedule Appointments
Affected
up to 1.6.12.31
What to do
Affects up to 1.6.12.31. Update Simply Schedule Appointments to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Sep 30, 2026Unauthenticated Insecure Direct Object References (IDOR) in Simply Schedule Appointments <= 1.6.12.31 versions.CVE-2026-94673 · WordPress plugins & themes · reported by PatchstackMedium 5.3
Unauthenticated Insecure Direct Object References (IDOR) in Simply Schedule Appointments <= 1.6.12.31 versions.
Affected
up to 1.6.12.31
What to do
Affects up to 1.6.12.31. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 30, 2026Unauthenticated Broken Access Control in Simply Schedule Appointments <= 1.6.12.29 versions.CVE-2026-94074 · WordPress plugins & themes · reported by PatchstackMedium 6.5
Unauthenticated Broken Access Control in Simply Schedule Appointments <= 1.6.12.29 versions.
Affected
up to 1.6.12.29
What to do
Affects up to 1.6.12.29. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 30, 2026Simply Schedule Appointments: Local File InclusionCVE-2026-89294 · WordPress plugins & themes · reported by WordfenceHigh 7.5
The Simply Schedule Appointments plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 1.6.12.27 via the 'ssa_locale' parameter parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included. Notably, exploitation does not require authentication in practice, as the locale filter is installed unconditionally on every request during plugins_loaded and the callback performs no nonce or capability check before returning the raw GET parameter value.
Product
Simply Schedule Appointments
Affected
up to 1.6.12.27
What to do
Affects up to 1.6.12.27. Update Simply Schedule Appointments to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Sep 18, 2026Really Simple Security: Does not validate a client-supplied address value before using itCVE-2026-88798 · WordPress plugins & themes · reported by WPScanMedium 5.3
The Really Simple Security WordPress plugin before 9.8.3 does not validate a client-supplied address value before using it as a storage key in one of its own options, allowing unauthenticated attackers to grow that option without bound and to slow the site's handling of missing pages.
Product
Really Simple Security
Fixed in
9.8.3
What to do
Update Really Simple Security to 9.8.3 or newer.
Full record and what to do →NVD record wpscan.com
Sep 17, 2026Contributor Broken Access Control in Simple Membership <= 4.8.2 versions.CVE-2026-74000 · WordPress plugins & themes · reported by PatchstackMedium 5.3
Contributor Broken Access Control in Simple Membership <= 4.8.2 versions.
Affected
up to 4.8.2
What to do
Affects up to 4.8.2. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 14, 2026Really Simple Security: Missing authorization checkCVE-2026-82519 · WordPress plugins & themes · reported by VulnCheckLow 2.3
Really Simple Security plugin for WordPress before 9.8.2 contains a missing authorization check vulnerability that allows authenticated low-privileged attackers to bypass enforced two-factor authentication indefinitely by exploiting an unguarded code path in the profile-page update handler. Attackers can submit a crafted POST request without the two-factor-authentication field to skip nonce verification and trigger delete_two_fa_meta(), which resets the grace period anchor timestamp on every login cycle, causing mandatory 2FA enforcement to be deferred indefinitely.
Product
Really Simple Security
Fixed in
9.8.2
What to do
Update Really Simple Security to 9.8.2 or newer.
Full record and what to do →NVD record wordpress.org vulncheck.com
Sep 13, 2026Really Simple Security: Does not prevent an unauthenticated request from resetting an account's completed email two-factor enrolmentCVE-2026-89080 · WordPress plugins & themes · reported by WPScanHigh 7.5
The Really Simple Security WordPress plugin before 9.8.1 does not prevent an unauthenticated request from resetting an account's completed email two-factor enrolment, allowing an attacker who already knows the account's password to bypass the second factor and obtain that user's session, up to administrator.
Product
Really Simple Security
Fixed in
9.8.1
What to do
Update Really Simple Security to 9.8.1 or newer.
Full record and what to do →NVD record wpscan.com
Sep 13, 2026Simple Membership: Does not validate that the membership level supplied in a PayPal payment notification matches the level configured for the paid payment buttonCVE-2026-88764 · WordPress plugins & themes · reported by WPScanMedium 5.4
The Simple Membership WordPress plugin before 4.7.8 does not validate that the membership level supplied in a PayPal payment notification matches the level configured for the paid payment button, allowing members to pay for a lower-priced membership while being granted a higher, more privileged membership level.
Product
Simple Membership
Fixed in
4.7.8
What to do
Update Simple Membership to 4.7.8 or newer.
Full record and what to do →NVD record wpscan.com
Sep 11, 2026Contributor Cross Site Scripting (XSS) in Simple Payment <= 2.5.4 versions.CVE-2026-62111 · WordPress plugins & themes · reported by PatchstackMedium 6.5
Contributor Cross Site Scripting (XSS) in Simple Payment <= 2.5.4 versions.
Affected
up to 2.5.4
What to do
Affects up to 2.5.4. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 11, 2026The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin from 1.2.2 before 1.42.3 runs the shortcode parser over the whole rendered Contact Form 7 form, inCVE-2026-85116 · WordPress plugins & themes · reported by WPScanMedium 6.5
The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin from 1.2.2 before 1.42.3 runs the shortcode parser over the whole rendered Contact Form 7 form, including the values a visitor submitted, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.
Fixed in
1.42.3
What to do
Update the plugin to 1.42.3 or newer.
Full record and what to do →NVD record wpscan.com
Sep 11, 2026Simple Ajax Chat – Add a Fast, Secure Chat Box: Stored Cross-Site ScriptingCVE-2026-81825 · WordPress plugins & themes · reported by WordfenceHigh 7.2
The Simple Ajax Chat – Add a Fast, Secure Chat Box plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Chat Message in all versions up to, and including, <= 20260811 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The nonce protecting chat message submission is publicly visible on the chat page, rendering it ineffective as an authentication barrier and allowing fully unauthenticated attackers to submit malicious messages that are stored persistently and rendered to all visitors on every page load.
Product
Simple Ajax Chat – Add a Fast, Secure Chat Box
Affected
up to 20260811
What to do
Affects up to 20260811. Update Simple Ajax Chat – Add a Fast, Secure Chat Box to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Sep 10, 2026Unauthenticated Bypass Vulnerability in Simple Cloudflare Turnstile <= 1.42.1 versions.CVE-2026-66674 · WordPress plugins & themes · reported by PatchstackMedium 5.6
Unauthenticated Bypass Vulnerability in Simple Cloudflare Turnstile <= 1.42.1 versions.
Affected
up to 1.42.1
What to do
Affects up to 1.42.1. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 10, 2026Unauthenticated Content Injection in Simple Cloudflare Turnstile <= 1.42.1 versions.CVE-2026-66632 · WordPress plugins & themes · reported by PatchstackMedium 6.5
Unauthenticated Content Injection in Simple Cloudflare Turnstile <= 1.42.1 versions.
Affected
up to 1.42.1
What to do
Affects up to 1.42.1. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 3, 2026Unauthenticated Broken Authentication in Really Simple SSL <= 9.8.0 versions.CVE-2026-84777 · WordPress plugins & themes · reported by PatchstackHigh 7.4
Unauthenticated Broken Authentication in Really Simple SSL <= 9.8.0 versions.
Affected
up to 9.8.0
What to do
Affects up to 9.8.0. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 3, 2026Unauthenticated Cross Site Scripting (XSS) in Simple Payment <= 2.5.1 versions.CVE-2026-81292 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Unauthenticated Cross Site Scripting (XSS) in Simple Payment <= 2.5.1 versions.
Affected
up to 2.5.1
What to do
Affects up to 2.5.1. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 2, 2026Simple Membership MailChimp Integration: Does not have CSRF checks in its settings pageCVE-2026-8151 · WordPress plugins & themes · reported by WPScanMedium 5.4
The Simple Membership MailChimp Integration WordPress plugin before 1.9.8 does not have CSRF checks in its settings page, allowing attackers to trick a logged-in administrator into changing the configured third-party API key. Once replaced, all subsequent member registration data (name, email, membership level) is sent to the attacker-controlled account.
Product
Simple Membership MailChimp Integration
Fixed in
1.9.8
What to do
Update Simple Membership MailChimp Integration to 1.9.8 or newer.
Full record and what to do →NVD record plugins.trac.wordpress.org wpscan.com
Sep 2, 2026Unauthenticated Denial of Service Attack in Really Simple SSL <= 9.8.0 versions.CVE-2026-84775 · WordPress plugins & themes · reported by PatchstackMedium 5.3
Unauthenticated Denial of Service Attack in Really Simple SSL <= 9.8.0 versions.
Affected
up to 9.8.0
What to do
Affects up to 9.8.0. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 2, 2026Unauthenticated Cross Site Request Forgery (CSRF) in Simply Schedule Appointments <= 1.6.12.23 versions.CVE-2026-84764 · WordPress plugins & themes · reported by PatchstackHigh 8.8
Unauthenticated Cross Site Request Forgery (CSRF) in Simply Schedule Appointments <= 1.6.12.23 versions.
Affected
up to 1.6.12.23
What to do
Affects up to 1.6.12.23. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 2, 2026Simple Ajax Chat: Does not escape chat message content before rendering itCVE-2026-81807 · WordPress plugins & themes · reported by WPScanHigh 8.8
The Simple Ajax Chat WordPress plugin before 20260827 does not escape chat message content before rendering it, allowing unauthenticated users to inject arbitrary HTML attributes into the page and run scripts in the browser of anyone viewing the chat, including administrators.
Product
Simple Ajax Chat
Fixed in
20260827
What to do
Update Simple Ajax Chat to 20260827 or newer.
Full record and what to do →NVD record wpscan.com
Sep 1, 2026Simple Membership: Authentication Bypass leading to Administrator Account TakeoverCVE-2026-77194 · WordPress plugins & themes · reported by WordfenceMedium 5.3
The Simple Membership plugin for WordPress is vulnerable to Authentication Bypass leading to Administrator Account Takeover in versions up to, and including, 4.8.0. This is due to improper identity verification during the public registration flow in WordPress Multisite environments, where the plugin binds new Simple Membership records to existing global WordPress users based solely on matching username and email, without requiring password verification or ownership proof, and fails to properly detect Administrator roles on child sites. This makes it possible for unauthenticated attackers to take over Administrator accounts on child sites in a Multisite network by registering a Simple Membership account with a victim's credentials on a site where public registration is enabled, then updating the victim's global WordPress password through the profile edit functionality. The vulnerability was partially patched in version 4.8.1.
Product
Simple Membership
Affected
up to 4.8.0
What to do
Affects up to 4.8.0. Update Simple Membership to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Aug 30, 2026Really Simple Security: Does not check that the user is allowed to install Really Simple Security WordPress plugin before 9CVE-2026-81766 · WordPress plugins & themes · reported by WPScanMedium 6.6
The Really Simple Security WordPress plugin before 9.8.0 does not check that the user is allowed to install Really Simple Security WordPress plugin before 9.8.0 before installing one from a user-supplied URL, allowing an administrator of a subsite on a multisite network to install and execute arbitrary code in the network-shared Really Simple Security WordPress plugin before 9.8.0 directory, which WordPress otherwise reserves to the network administrator. Exploitation requires the network administrator to have enabled the Really Simple Security WordPress plugin before 9.8.0 administration menu for subsites, which is not the default.
Product
Really Simple Security
Fixed in
9.8.0
What to do
Update Really Simple Security to 9.8.0 or newer.
Full record and what to do →NVD record wpscan.com

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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