Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 8 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

19 results

  • Sep 20, 2026SAML Single Sign On: Does not honour the configured criterion for linking an incoming single sign-on identity to a WordPress accountCVE-2026-82842 · WordPress plugins & themes · reported by WPScanHigh 8.1

    The SAML Single Sign On WordPress plugin before 6.0.0 does not honour the configured criterion for linking an incoming single sign-on identity to a WordPress account, always resolving the identity by login name whatever the site has chosen, which allows an attacker who can have the site's identity provider assert a login name of their choosing to authenticate as any account, including an administrator, without proving ownership of that account.

    Product
    SAML Single Sign On
    Fixed in
    6.0.0
    What to do
    Update SAML Single Sign On to 6.0.0 or newer.
  • Sep 12, 2026Frontegg SAML SSO: Does not verify the signature or issuer of SAML authentication responses before establishing a sessionCVE-2026-75800 · WordPress plugins & themes · reported by WPScanCritical 9.8

    The Frontegg SAML SSO WordPress plugin through 1.0.1 does not verify the signature or issuer of SAML authentication responses before establishing a session, allowing unauthenticated attackers to log in as any user, including administrators, as well as to create arbitrary accounts.

    Product
    Frontegg SAML SSO
    Affected
    up to 1.0.1
    What to do
    Affects up to 1.0.1. Update Frontegg SAML SSO to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Aug 29, 2026SAML Single Sign On – SSO Login: Authentication BypassCVE-2026-75807 · WordPress plugins & themes · reported by WordfenceHigh 7.5

    The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to, and including, 5.4.6. This is due to the mo_saml_login_validate() ACS handler persisting the X.509 certificate extracted from an incoming SAMLResponse into the mo_saml_required_certificate option before the signature-validation verdict is enforced, because mo_saml_find_certificate() returns false on a fingerprint mismatch rather than halting execution. This makes it possible for unauthenticated attackers to overwrite the plugin's stored IdP signing certificate with an attacker-controlled value, and subsequently forge SAML assertions for any WordPress account — including administrators — to obtain a fully privileged session. Note: The exploit requires the administrator to perform a repair after receiving the test_config_error_wpsamlerr004 error message during the test configuration.

    Product
    SAML Single Sign On – SSO Login
    Affected
    up to 5.4.6
    What to do
    Affects up to 5.4.6. Update SAML Single Sign On – SSO Login to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Aug 19, 2026SAML Single Sign On: Does not verify the signature of a SAML response before storing the certificate it carriesCVE-2026-19842 · WordPress plugins & themes · reported by WPScanHigh 8.8

    The SAML Single Sign On WordPress plugin before 5.4.7 does not verify the signature of a SAML response before storing the certificate it carries, and offers an administrator a one-click control that promotes that stored certificate to the site's trusted signing certificate, allowing unauthenticated attackers to have a certificate of their own trusted and then authenticate as any user, including an administrator.

    Product
    SAML Single Sign On
    Fixed in
    5.4.7
    What to do
    Update SAML Single Sign On to 5.4.7 or newer.
  • Aug 13, 2026Unauthenticated Privilege Escalation in SAML SP Single Sign On <= 5.4.3 versions.CVE-2026-61979 · WordPress plugins & themes · reported by PatchstackHigh 8.1

    Unauthenticated Privilege Escalation in SAML SP Single Sign On <= 5.4.3 versions.

    Affected
    up to 5.4.3
    What to do
    Affects up to 5.4.3. 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.
  • Jul 23, 2026SAML Single Sign On – SSO Login: Authentication BypassCVE-2026-15981 · WordPress plugins & themes · reported by WordfenceCritical 9.8

    The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 5.4.4. This is due to the mo_saml_validate_signature() function performing a loose boolean check on the raw tri-state integer returned by PHP's openssl_verify(), causing an error return value of -1 to be evaluated as truthy and therefore treated as a successful signature verification. This makes it possible for unauthenticated attackers to log in as any existing WordPress user, including administrators, by submitting a crafted SAMLResponse containing an attacker-controlled NameID and a deliberately malformed signature value that triggers an OpenSSL processing error — bypassing verification entirely and resulting in wp_set_auth_cookie() being called for the targeted account.

    Product
    SAML Single Sign On – SSO Login
    Affected
    up to 5.4.4
    What to do
    Affects up to 5.4.4. Update SAML Single Sign On – SSO Login to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jul 16, 2026SAML Single Sign On – SSO Login: Authentication BypassCVE-2026-15013 · WordPress plugins & themes · reported by WordfenceCritical 9.8

    The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass via SAML Signature Algorithm Confusion in all versions up to, and including, 5.4.3. The vulnerability exists because `Mo_SAML_Utilities::mo_saml_cast_key()` reads the `SignatureMethod` Algorithm attribute directly from the attacker-controlled `SAMLResponse` parameter rather than enforcing the locally configured algorithm, causing the plugin to recast the IdP's RSA public key as an HMAC-SHA1 shared secret and validate the forged signature against it. This makes it possible for unauthenticated attackers to forge a SAML assertion targeting any WordPress account — including administrators — obtain valid WordPress authentication cookies, and achieve full administrator-level account takeover.

    Product
    SAML Single Sign On – SSO Login
    Affected
    up to 5.4.3
    What to do
    Affects up to 5.4.3. Update SAML Single Sign On – SSO Login to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Sep 6, 2025Cloud SAML SSO: Identity Provider DeletionCVE-2025-7045 · WordPress plugins & themes · reported by WordfenceMedium 6.5

    The Cloud SAML SSO plugin for WordPress is vulnerable to Identity Provider Deletion due to a missing capability check on the delete_config action of the csso_handle_actions() function in all versions up to, and including, 1.0.19. This makes it possible for unauthenticated attackers to delete any configured IdP, breaking the SSO authentication flow and causing a denial-of-service.

    Product
    Cloud SAML SSO
    Affected
    up to 1.0.19
    What to do
    Affects up to 1.0.19. Update Cloud SAML SSO to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Sep 6, 2025Cloud SAML SSO: Unauthorized modification of dataCVE-2025-7040 · WordPress plugins & themes · reported by WordfenceHigh 8.2

    The Cloud SAML SSO plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'set_organization_settings' action of the csso_handle_actions() function in all versions up to, and including, 1.0.19. The handler reads client-supplied POST parameters for organization settings and passes them directly to update_option() without any check of the user’s capabilities or a CSRF nonce. This makes it possible for unauthenticated attackers to change critical configuration (including toggling signing and encryption), potentially breaking the SSO flow and causing a denial-of-service.

    Product
    Cloud SAML SSO
    Affected
    up to 1.0.19
    What to do
    Affects up to 1.0.19. Update Cloud SAML SSO to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Aug 14, 2025Cloud SAML SSO - Single Sign On Login: Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')CVE-2025-49264 · WordPress plugins & themes · reported by PatchstackHigh 7.5

    Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Cloud Infrastructure Services Cloud SAML SSO - Single Sign On Login cloud-sso-single-sign-on allows PHP Local File Inclusion.This issue affects Cloud SAML SSO - Single Sign On Login: from n/a through <= 1.0.18.

    Product
    Cloud SAML SSO - Single Sign On Login
    Affected
    up to 1.0.18
    What to do
    Affects up to 1.0.18. Update Cloud SAML SSO - Single Sign On Login to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jan 31, 2025EZPZ SAML SP Single Sign On (SSO): Cross-Site Request Forgery (CSRF)CVE-2025-24749 · WordPress plugins & themes · reported by PatchstackHigh 7.1

    Cross-Site Request Forgery (CSRF) vulnerability in Overt Software Solutions LTD EZPZ SAML SP Single Sign On (SSO) allows Cross Site Request Forgery. This issue affects EZPZ SAML SP Single Sign On (SSO): from n/a through 1.2.5.

    Product
    EZPZ SAML SP Single Sign On (SSO)
    Affected
    up to 1.2.5
    What to do
    Affects up to 1.2.5. Update EZPZ SAML SP Single Sign On (SSO) to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Dec 13, 2024SAML SP Single Sign On: Missing AuthorizationCVE-2023-41873 · WordPress plugins & themes · reported by PatchstackMedium 4.3

    Missing Authorization vulnerability in miniOrange SAML SP Single Sign On allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects SAML SP Single Sign On: from n/a through 5.0.4.

    Product
    SAML SP Single Sign On
    Affected
    up to 5.0.4
    What to do
    Affects up to 5.0.4. Update SAML SP Single Sign On to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Nov 16, 2024Login using WordPress Users ( WP as SAML IDP ): Time-based SQL InjectionCVE-2024-9887 · WordPress plugins & themes · reported by WordfenceHigh 7.2

    The Login using WordPress Users ( WP as SAML IDP ) plugin for WordPress is vulnerable to time-based SQL Injection via the ‘id’ parameter in all versions up to, and including, 1.15.6 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 Administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

    Product
    Login using WordPress Users ( WP as SAML IDP )
    Affected
    up to 1.15.6
    What to do
    Affects up to 1.15.6. Update Login using WordPress Users ( WP as SAML IDP ) to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jan 30, 2023The SAML SSO Standard WordPress plugin version 16.0.0 before 16.0.8, SAML SSO Premium WordPress plugin version 12.0.0 before 12.1.0 and SAML SSO Premium MultisiCVE-2022-4496 · WordPress plugins & themes · reported by WPScanMedium 6.1

    The SAML SSO Standard WordPress plugin version 16.0.0 before 16.0.8, SAML SSO Premium WordPress plugin version 12.0.0 before 12.1.0 and SAML SSO Premium Multisite WordPress plugin version 20.0.0 before 20.0.7 does not validate that the redirect parameter to its SSO login endpoint points to an internal site URL, making it vulnerable to an Open Redirect issue when the user is already logged in.

    Product
    SAML SSO Standard
    Fixed in
    16.0.8
    What to do
    Update SAML SSO Standard to 16.0.8 or newer.
  • Jun 27, 2022Login using WordPress Users ( WP as SAML IDP ): Does not sanitise and escape some of its settingsCVE-2022-1010 · WordPress plugins & themes · reported by WPScanMedium 4.8

    The Login using WordPress Users ( WP as SAML IDP ) WordPress plugin before 1.13.4 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks when the unfiltered_html capability is disallowed (for example in multisite setup)

    Product
    Login using WordPress Users ( WP as SAML IDP )
    Fixed in
    1.13.4
    What to do
    Update Login using WordPress Users ( WP as SAML IDP ) to 1.13.4 or newer.
  • Sep 9, 2021simpleSAMLphp Authentication: Reflected Cross-Site ScriptingCVE-2021-38320 · WordPress plugins & themes · reported by WordfenceMedium 6.1

    The simpleSAMLphp Authentication WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER["PHP_SELF"] value in the ~/simplesamlphp-authentication.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.7.0.

    Product
    simpleSAMLphp Authentication
    Affected
    up to 0.7.0
    What to do
    Affects up to 0.7.0. Update simpleSAMLphp Authentication to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Feb 17, 2020Utilities.php in the miniorange-saml-20-single-sign-on plugin before 4.8.84 for WordPress allows XSS via a crafted SAML XML Response to wp-login.php.CVE-2020-6850 · WordPress plugins & themes · reported by MITREMedium 6.1

    Utilities.php in the miniorange-saml-20-single-sign-on plugin before 4.8.84 for WordPress allows XSS via a crafted SAML XML Response to wp-login.php. This is related to the SAMLResponse and RelayState variables, and the Destination parameter of the samlp:Response XML element.

    Product
    Utilities.php in the miniorange-saml-20-single-sign-on
    Fixed in
    4.8.84
    What to do
    Update Utilities.php in the miniorange-saml-20-single-sign-on to 4.8.84 or newer.
  • Aug 22, 2019The onelogin-saml-sso plugin before 2.2.0 for WordPress has a hardcoded @@@nopass@@@ password for just-in-time provisioned users.CVE-2016-10928 · WordPress plugins & themes · reported by MITREHigh 7.5

    The onelogin-saml-sso plugin before 2.2.0 for WordPress has a hardcoded @@@nopass@@@ password for just-in-time provisioned users.

    Product
    onelogin-saml-sso
    Fixed in
    2.2.0
    What to do
    Update onelogin-saml-sso to 2.2.0 or newer.
  • Jun 24, 2019In the miniOrange SAML SP Single Sign On plugin before 4.8.73 for WordPress, the SAML Login Endpoint is vulnerable to XSS via a specially crafted SAMLResponse XCVE-2019-12346 · WordPress plugins & themes · reported by MITREMedium 6.1

    In the miniOrange SAML SP Single Sign On plugin before 4.8.73 for WordPress, the SAML Login Endpoint is vulnerable to XSS via a specially crafted SAMLResponse XML post.

    Product
    In the miniOrange SAML SP Single Sign On
    Fixed in
    4.8.73
    What to do
    Update In the miniOrange SAML SP Single Sign On to 4.8.73 or newer.

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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