CVE-2024-10924
CVE-2024-10924 is a critical-severity vulnerability in Really-simple-plugins Really Simple Security with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 82% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-306.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 82% (100th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-33353
- Weakness: CWE-306
- Affected product: Really-simple-plugins Really Simple Security
- Published:
- Last modified:
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).
Frequently asked questions
- What is 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. 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).
- How severe is CVE-2024-10924?
- CVE-2024-10924 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2024-10924 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 82% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-10924?
- CVE-2024-10924 primarily affects Really-simple-plugins Really Simple Security. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2024-10924?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2024-10924 have an EU (EUVD) identifier?
- Yes. CVE-2024-10924 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-33353.
- When was CVE-2024-10924 published?
- CVE-2024-10924 was published on 2024-11-15 and last updated on 2026-06-17.
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#L277
- 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
- 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
- https://plugins.trac.wordpress.org/changeset/3188431/really-simple-ssl
- https://www.wordfence.com/blog/2024/11/really-simple-security-vulnerability/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7d5d05ad-1a7a-43d2-bbbf-597e975446be?source=cve
- https://github.com/JoshuaProvoste/0-click-RCE-Exploit-for-CVE-2024-10924
Affected products (3)
- cpe:2.3:a:really-simple-plugins:really_simple_security:*:*:*:*:-:wordpress:*:*
- cpe:2.3:a:really-simple-plugins:really_simple_security:*:*:*:*:pro:wordpress:*:*
- cpe:2.3:a:really-simple-plugins:really_simple_security:*:*:*:*:pro_multisite:wordpress:*:*
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- CVE-2026-49257 — Critical (CVSS 10.0): mcp-pinot is a Python-based Model Context Protocol (MCP) server for interacting with Apache Pinot. In versions 3.0.1…
- CVE-2026-46846 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
- CVE-2026-46803 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
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