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CVE-2024-10924

CRITICAL 9.8 CVSS 3.1
Published
November 15, 2024
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-288, CWE-306
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The Really Simple Security (Free, Pro, and Pro Multisite) plugins for WordPress are vulnerable to authentication bypass in versions 9.0.0 to 9.1.1.1. This is due to improper user check error handling in the two-factor REST API actions with the 'check_login_and_get_user' function. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, when the "Two-Factor Authentication" setting is enabled (disabled by default).

Affected WordPress components

  • Really Simple Security – Simple and Performant Security (formerly Really Simple SSL) Plugin · really-simple-ssl
    Confirmed match Active
    From 9.0.0 (including) to 9.1.1.1 (including)
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Really Simple Plugins Really Simple Security Pro multisite — From 9.0.0 (including) to 9.1.1.1 (including)
  • rogierlankhorst Really Simple Security – Simple and Performant Security (formerly Really Simple SSL) — From 9.0.0 (including) to 9.1.1.1 (including)
  • Really Simple Plugins Really Simple Security Pro — From 9.0.0 (including) to 9.1.1.1 (including)
  • really-simple-plugins really_simple_security — From 9.0.0 (including) to 9.1.1.1 (including)
  • really-simple-plugins really_simple_security — From 9.0.0 (including) to 9.1.2 (excluding)

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/really-simple-ssl/tags/9.1.1.1/security/wordpress/two-fa/class-rsssl-two-factor-on-board-api.php#L277 Product
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/really-simple-ssl/tags/9.1.1.1/security/wordpress/two-fa/class-rsssl-two-factor-on-board-api.php#L278 Product
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/really-simple-ssl/tags/9.1.1.1/security/wordpress/two-fa/class-rsssl-two-factor-on-board-api.php#L67 Product
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3188431/really-simple-ssl Patch
  • www.wordfence.com https://www.wordfence.com/blog/2024/11/really-simple-security-vulnerability/ Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/7d5d05ad-1a7a-43d2-bbbf-597e975446be?source=cve Third Party Advisory
  • github.com https://github.com/JoshuaProvoste/0-click-RCE-Exploit-for-CVE-2024-10924
  • nvd.nist.gov Official NVD record