CVE-2024-10924
CriticalExploitedPublic exploitReally Simple Security (Free, Pro, and Pro Multisite) 9.0.0 - 9.1.1.1 - Authentication Bypass
Published Nov 13, 2024 · Updated Jan 23, 2026 · Also known as 7d5d05ad-1a7a-43d2-bbbf-597e975446be
Key Facts
Patch immediately- CVE-2024-10924 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Really Simple Security (Really-Simple-Plugins), really-simple-ssl (wordpress-plugin), really-simple-ssl-pro (wordpress-plugin) and 4 more products.
- It is exploited in the wild, listed in Industry KEV feed since Nov 14, 2024. Public exploit code is available.
- EPSS estimates a 82% probability of exploitation in the next 30 days.
- Fixed versions are available, including Really Simple Security 9.1.2, really-simple-ssl 9.1.2, really-simple-ssl-pro 9.1.2.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
82%
Higher than 99.6% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2024-10924 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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).
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Nov 14, 2024 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
9 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Really Simple SecurityReally-Simple-Plugins | See advisory | 9.1.2 |
| really-simple-sslwordpress-plugin | >= 9.0.0 | 9.1.2 |
| really-simple-ssl-prowordpress-plugin | >= 9.0.0 | 9.1.2 |
| really-simple-ssl-pro-multisitewordpress-plugin | >= 9.0.0 | 9.1.2 |
| Really Simple Security Pro | >= 9.0.0 | n/a |
Patched Releases
Really Simple Security
9.1.2
really-simple-ssl
9.1.2
really-simple-ssl-pro
9.1.2
really-simple-ssl-pro-multisite
9.1.2
Timeline
Publicly disclosed
Nov 13, 2024
Added to Industry KEV feed
Nov 14, 2024
Last updated
Jan 23, 2026
Weakness Type
- CWE-288 Authentication Bypass Using an Alternate Path or Channel
- CWE-306 Missing Authentication for Critical Function
References
- advisoryhttps://www.wordfence.com/blog/2024/11/really-simple-security-vulnerability/
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/7d5d05ad-1a7a-43d2-bbbf-597e975446be?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/7d5d05ad-1a7a-43d2-bbbf-597e975446be?source=api-scan
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/7d5d05ad-1a7a-43d2-bbbf-597e975446be?source=cve
- patchhttps://plugins.trac.wordpress.org/changeset/3188431/really-simple-ssl
FAQ
Common Questions.
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.
Affected: Really Simple Security (Really-Simple-Plugins); really-simple-ssl (wordpress-plugin) versions >= 9.0.0; really-simple-ssl-pro (wordpress-plugin) versions >= 9.0.0, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Nov 14, 2024.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Really Simple Security 9.1.2, really-simple-ssl 9.1.2, really-simple-ssl-pro 9.1.2.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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