{"id":"CVE-2026-82842","aliases":["EUVD-2026-83667","GHSA-c354-pg28-5955"],"status":"published","title":"SAML Single Sign On \u003c 6.0.0 - Unauthenticated Privilege Escalation via Account Matching","description":"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.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00373,"percentile":0.31686,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2026-09-20T06:00:16Z","modified":"2026-09-21T13:34:57Z","products":[{"vendor":"unknown","product":"saml single sign on"}],"references":[{"url":"https://wpscan.com/vulnerability/4ae66b2c-a0de-405f-baca-127302257540/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82842"},{"url":"https://wpscan.com/vulnerability/4ae66b2c-a0de-405f-baca-127302257540"},{"url":"https://github.com/advisories/GHSA-c354-pg28-5955"}],"sources":{"cve":[{"id":"CVE-2026-82842","title":"SAML Single Sign On \u003c 6.0.0 - Unauthenticated Privilege Escalation via Account Matching","description":"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.","status":"published","published":"2026-09-20T06:00:16.509Z","modified":"2026-09-20T13:49:00.235Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T13:40:35.004553Z"}],"euvd":[{"id":"EUVD-2026-83667","description":"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.","status":"published","published":"2026-09-20T06:00:16Z","modified":"2026-09-20T13:49:00Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T17:28:05.72344Z"}],"ghsa":[{"id":"GHSA-c354-pg28-5955","title":"The SAML Single Sign On  WordPress plugin before 6.0.0 does not honour the configured criterion...","description":"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.","status":"published","published":"2026-09-20T09:30:20Z","modified":"2026-09-20T15:30:25Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T15:12:14.055197Z"}],"nvd":[{"id":"CVE-2026-82842","description":"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.","status":"published","published":"2026-09-20T07:16:50.093Z","modified":"2026-09-21T13:34:57.127Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:12:50.043898Z"}]}}