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Plugin · simple-membership
Simple Membership
37 known vulnerabilities on record. Add your version above to see which ones affect you.
Oct 11, 2026Simple Membership: Does not avoid transmitting a newly registered member's plaintext password in a URL query stringCVE-2026-88785 · fixed in 4.8.3 · 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.
Oct 10, 2026Simple Membership: Stored Cross-Site ScriptingCVE-2026-103427 · affects up to 4.8.4 · 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.
Oct 3, 2026Simple Membership: Unauthorized modification of data and sensitive information disclosureCVE-2026-97337 · affects up to 4.8.3 · 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.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Sep 17, 2026Contributor Broken Access Control in Simple Membership <= 4.8.2 versions.CVE-2026-74000 · affects up to 4.8.2 · reported by PatchstackMedium 5.3
Contributor Broken Access Control in Simple Membership <= 4.8.2 versions.
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 · fixed in 4.7.8 · 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.
Sep 1, 2026Simple Membership: Authentication Bypass leading to Administrator Account TakeoverCVE-2026-77194 · affects up to 4.8.0 · 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.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Aug 6, 2026Simple Membership: Does not verify that a PayPal payment notification was sent to the site's own configured merchant account before activating a membershipCVE-2026-14936 · fixed in 4.7.7 · reported by WPScanMedium 5.3
The Simple Membership WordPress plugin before 4.7.7 does not verify that a PayPal payment notification was sent to the site's own configured merchant account before activating a membership, allowing unauthenticated users to activate or extend a membership using a payment made to an arbitrary PayPal account they control.
Aug 6, 2026Unauthenticated Broken Access Control in Simple Membership <= 4.7.8 versions.CVE-2026-66712 · affects up to 4.7.8 · reported by PatchstackHigh 7.5
Unauthenticated Broken Access Control in Simple Membership <= 4.7.8 versions.
Aug 3, 2026Simple Membership: Does not sanitise a subscriber name value received from an unauthenticated payment approval requestCVE-2026-15931 · fixed in 4.7.8 · reported by WPScanMedium 6.1
The Simple Membership WordPress plugin before 4.7.8 does not sanitise a subscriber name value received from an unauthenticated payment approval request, nor escape it when displaying it in the administration dashboard, allowing unauthenticated attackers to store arbitrary JavaScript that executes in an administrator's session.
Aug 3, 2026Simple Membership: Does not verify whether user creation failed during registration before using the returned valueCVE-2026-15930 · fixed in 4.7.8 · reported by WPScanCritical 9.4
The Simple Membership WordPress plugin before 4.7.8 does not verify whether user creation failed during registration before using the returned value as a user ID to update an account, allowing unauthenticated attackers to overwrite the primary administrator's account data (including the email address) and take over that account through the password reset flow.
Jul 6, 2026Simple Membership: Does not verify the authenticity of Stripe webhook requestsCVE-2026-11855 · fixed in 4.7.5 · reported by WPScanHigh 8.8
The Simple Membership WordPress plugin before 4.7.5 does not verify the authenticity of Stripe webhook requests when no signing secret is configured, nor escape a value taken from them before outputting it in an administrator notice, allowing unauthenticated attackers to inject arbitrary web scripts that execute in the context of a logged-in administrator.
Jun 18, 2026Simple Membership: Authorization bypassCVE-2026-12093 · affects up to 4.7.5 · reported by WordfenceMedium 5.3
The Simple Membership plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.7.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to deactivate arbitrary member accounts by forging a charge.refunded webhook event containing a victim's subscription ID, setting the target member's account_state to 'inactive' and triggering cancellation hooks, transaction-record status changes, and cancellation notification emails. This vulnerability is exploitable only on installations where no Stripe webhook signing secret has been configured, which is the default out-of-the-box state; sites that have configured the stripe-webhook-signing-secret option are routed to the properly verified HMAC path and are not affected.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Jun 15, 2026Unauthenticated Cross Site Scripting (XSS) in Simple Membership <= 4.7.2 versions.CVE-2026-42663 · affects up to 4.7.2 · reported by PatchstackMedium 6.5
Unauthenticated Cross Site Scripting (XSS) in Simple Membership <= 4.7.2 versions.
Jun 15, 2026Unauthenticated Broken Access Control in Simple Membership <= 4.7.1 versions.CVE-2026-34886 · affects up to 4.7.1 · reported by PatchstackHigh 7.5
Unauthenticated Broken Access Control in Simple Membership <= 4.7.1 versions.
Feb 19, 2026Simple Membership: Improper Handling of Missing ValuesCVE-2026-1461 · affects up to 4.7.0 · reported by WordfenceMedium 6.5
The Simple Membership plugin for WordPress is vulnerable to Improper Handling of Missing Values in all versions up to, and including, 4.7.0 via the Stripe webhook handler. This is due to the plugin only validating webhook signatures when the stripe-webhook-signing-secret setting is configured, which is empty by default. This makes it possible for unauthenticated attackers to forge Stripe webhook events to manipulate membership subscriptions, including reactivating expired memberships without payment or canceling legitimate subscriptions, potentially leading to unauthorized access and service disruption.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Feb 19, 2026Simple Membership: Missing AuthorizationCVE-2026-25308 · affects up to 4.6.9 · reported by PatchstackMedium 4.3
Missing Authorization vulnerability in wp.insider Simple Membership simple-membership allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simple Membership: from n/a through <= 4.6.9.
Jun 6, 2025Simple Membership: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2025-49333 · affects up to 4.6.3 · reported by PatchstackMedium 5.9
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wp.insider Simple Membership simple-membership allows Stored XSS.This issue affects Simple Membership: from n/a through <= 4.6.3.
Nov 21, 2024Simple Membership: Sensitive Information ExposureCVE-2024-11088 · affects up to 4.5.5 · reported by WordfenceMedium 5.3
The Simple Membership plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.5.5 via the WordPress core search feature. This makes it possible for unauthenticated attackers to extract sensitive data from posts that have been restricted to higher-level roles such as administrator.
Oct 24, 2024Simple Membership: URL Redirection to Untrusted Site ('Open Redirect')CVE-2024-49682 · affects up to 4.5.3 · reported by PatchstackMedium 4.7
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in wp.insider Simple Membership simple-membership allows Phishing.This issue affects Simple Membership: from n/a through <= 4.5.3.
May 17, 2024Simple Membership: Improper Privilege ManagementCVE-2023-41957 · affects up to 4.3.4 · reported by PatchstackHigh 8.6
Improper Privilege Management vulnerability in smp7, wp.Insider Simple Membership allows Privilege Escalation.This issue affects Simple Membership: from n/a through 4.3.4.
May 17, 2024Simple Membership: Improper AuthenticationCVE-2023-41956 · affects up to 4.3.4 · reported by PatchstackHigh 8.8
Improper Authentication vulnerability in smp7, wp.Insider Simple Membership.This issue affects Simple Membership: from n/a through 4.3.4.
May 14, 2024Simple Membership: Stored Cross-Site ScriptingCVE-2024-4383 · affects up to 4.4.5 · reported by WordfenceMedium 6.4
The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'swpm_paypal_subscription_cancel_link' shortcode in all versions up to, and including, 4.4.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Apr 25, 2024Simple Membership: Stored Cross-Site ScriptingCVE-2024-3730 · affects up to 4.4.3 · reported by WordfenceMedium 5.4
The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'swpm_paypal_subscription_cancel_link' shortcode in all versions up to, and including, 4.4.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Mar 13, 2024Simple Membership: Stored Cross-Site ScriptingCVE-2024-1985 · affects up to 4.4.2 · reported by WordfenceMedium 4.7
The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Display Name' parameter in all versions up to, and including, 4.4.2 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. This vulnerability requires social engineering to successfully exploit, and the impact would be very limited due to the attacker requiring a user to login as the user with the injected payload for execution.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Jan 24, 2024Simple Membership: URL Redirection to Untrusted Site ('Open Redirect')CVE-2024-22308 · affects up to 4.4.1 · reported by PatchstackLow 3.4
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in smp7, wp.Insider Simple Membership.This issue affects Simple Membership: from n/a through 4.4.1.
Jan 11, 2024Simple Membership: Reflected Cross-Site ScriptingCVE-2023-6882 · affects up to 4.3.8 · reported by WordfenceMedium 6.1
The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘environment_mode’ parameter in all versions up to, and including, 4.3.8 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.
Dec 19, 2023Simple Membership: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2023-50376 · affects up to 4.3.8 · reported by PatchstackHigh 7.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in smp7, wp.Insider Simple Membership allows Reflected XSS.This issue affects Simple Membership: from n/a through 4.3.8.
Sep 5, 2023Simple Membership: Reflected Cross-Site ScriptingCVE-2023-4719 · affects up to 4.3.5 · reported by WordfenceHigh 7.2
The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `list_type` parameter in versions up to, and including, 4.3.5 due to insufficient input sanitization and output escaping. Using this vulnerability, unauthenticated attackers could inject arbitrary web scripts into pages that are being executed if they can successfully trick a user into taking an action, such as clicking a malicious link.
Jan 16, 2023Simple Membership: Does not validate and escape some of its shortcode attributes before outputting them back in the pageCVE-2022-4469 · fixed in 4.2.2 · reported by WPScanMedium 5.4
The Simple Membership WordPress plugin before 4.2.2 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admin.
Aug 1, 2022Simple Membership: Allows user to change their membership at the registration stage due to insufficient checking of a user supplied parameterCVE-2022-2317 · fixed in 4.1.3 · reported by WPScanCritical 9.8
The Simple Membership WordPress plugin before 4.1.3 allows user to change their membership at the registration stage due to insufficient checking of a user supplied parameter.
Aug 1, 2022Simple Membership: Does not properly validate the membership_level parameterCVE-2022-2273 · fixed in 4.1.3 · reported by WPScanHigh 8.8
The Simple Membership WordPress plugin before 4.1.3 does not properly validate the membership_level parameter when editing a profile, allowing members to escalate to a higher membership level by using a crafted POST request.
Jun 13, 2022Simple Membership: Does not properly sanitise and escape parameters before outputting them back in AJAX actionsCVE-2022-1724 · fixed in 4.1.1 · reported by WPScanMedium 6.1
The Simple Membership WordPress plugin before 4.1.1 does not properly sanitise and escape parameters before outputting them back in AJAX actions, leading to Reflected Cross-Site Scripting
Mar 21, 2022Simple Membership: Does not have CSRF check in placeCVE-2022-0681 · fixed in 4.1.0 · reported by WPScanMedium 6.5
The Simple Membership WordPress plugin before 4.1.0 does not have CSRF check in place when deleting Transactions, which could allow attackers to make a logged in admin delete arbitrary transactions via a CSRF attack
Feb 28, 2022Simple Membership: Does not have CSRF checkCVE-2022-0328 · fixed in 4.0.9 · reported by WPScanMedium 4.7
The Simple Membership WordPress plugin before 4.0.9 does not have CSRF check when deleting members in bulk, which could allow attackers to make a logged in admin delete them via a CSRF attack
Aug 14, 2019The simple-membership plugin before 3.3.3 for WordPress has multiple CSRF issues.CVE-2016-10884 · fixed in 3.3.3 · reported by MITREHigh 8.8
The simple-membership plugin before 3.3.3 for WordPress has multiple CSRF issues.
Aug 12, 2019The simple-membership plugin before 3.5.7 for WordPress has XSS.CVE-2017-18499 · fixed in 3.5.7 · reported by MITREMedium 6.1
The simple-membership plugin before 3.5.7 for WordPress has XSS.
Jul 28, 2019The Simple Membership plugin before 3.8.5 for WordPress has CSRF affecting the Bulk Operation section.CVE-2019-14328 · fixed in 3.8.5 · reported by MITREHigh 8.8
The Simple Membership plugin before 3.8.5 for WordPress has CSRF affecting the Bulk Operation section.
Versions are matched against the affected ranges published with each record. A plugin can ship a fix under its own numbering, so if something looks off, check the linked record. Want the whole site checked at once? Run the free website check.
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