CVE-2024-10924
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 82.2%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
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).
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 82.22% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · first 15 April 2025
- CISA KEV
- Not listed
- Weakness
- CWE-288, CWE-306
- Affected
- really-simple-plugins/really simple security
- Source
- security@wordfence.com
EPSS 82.2% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- 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#L277Product
- 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#L278Product
- 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#L67Product
- https://plugins.trac.wordpress.org/changeset/3188431/really-simple-sslPatch
- https://www.wordfence.com/blog/2024/11/really-simple-security-vulnerability/Third Party Advisory
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7d5d05ad-1a7a-43d2-bbbf-597e975446be?source=cveThird Party Advisory
- https://github.com/JoshuaProvoste/0-click-RCE-Exploit-for-CVE-2024-10924
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.