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).
- CVSS
- 9.8Criticalscored by the publisher (CNA)
- Exploited in the wild
- Not knownPublic exploit code; not in CISA KEV
- EPSS
- 82.2%chance of exploitation in the next 30 daystop 0.4% of scored CVEsFIRST score of 11 Nov 2026
- Fix
- Patch availablesee the advisories in the references
- Published
- 15 Nov 2024analysed here 12 Nov 2026
Summary
Triage
- Attack surface
- Server-side
- Exploitable
- At runtime
- Attack vector
- network
- Can a WAF block it?
- Partly. See why
The summary, impact and action text on this page are written by our AI analysis pipeline, or taken from the NVD description when a CVE was imported from NVD. They are not the vendor's wording: check them against the sources. A longer AI executive summary and technical analysis are generated for signed-in accounts on the Max plan.
Affected products
| Product | Affected versions | Vendor says fixed in |
|---|---|---|
| Really Simple Plugins Really Simple Security Pro | >= 9.0.0 and <= 9.1.1.1Vendor says fixed in: not stated | |
| Really Simple Plugins Really Simple Security Pro multisite | >= 9.0.0 and <= 9.1.1.1Vendor says fixed in: not stated | |
| rogierlankhorst Really Simple Security – Simple and Performant Security (formerly Really Simple SSL) | >= 9.0.0 and <= 9.1.1.1Vendor says fixed in: not stated |
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
Products named in our analysis
- really-simple-plugins:really_simple_security
Fix and mitigation
WAF and other mitigations
Can a WAF block it? Partly. Cloudflare publishes WAF a rule written for this CVE. Such rules block the known exploit requests and buy time, but attackers can change the request to get past them, so they do not replace the patch.
Cloudflare · 1 rule (Block) · since 6 Jan 2025
- Really Simple Security - Auth Bypass - CVE:CVE-2024-10924 · Cloudflare Specials
Also consider: patch · enable the vendor rule in block mode
Based on WAF vendor rules published for this CVE. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Remediation steps (AI-written)
Step-by-step remediation is generated for accounts on the Max plan, for CVEs that match a technology in their stack. Add this technology to your stack to see the fix checklist.
Exploitation evidence
- CISA KEV catalog
- Not listed as of our last sync.
- Public exploit code
- Yes: 1 on Exploit-DB · 1 Metasploit module · 20 GitHub proofs of concept · 1 Nuclei template
- CISA SSVC
- exploitation none, automatable yes, technical impact totalAssessed by CISA 15 Nov 2024 (SSVC 2.0.3). Exploitation is none, poc (public proof of concept) or active.
Exploit-DB
- Really Simple Security 9.1.1.1 - Authentication Bypasswebapps, 15 Apr 2025
Metasploit
- exploit/multi/http/wp_reallysimplessl_2fa_bypass_rceexploit, rank excellent
Nuclei
- Really Simple Security < 9.1.2 - Authentication Bypassdetection template, critical
GitHub proofs of concept
- m3ssap0/wordpress-really-simple-security-authn-bypass-exploit20 stars
- JoshuaProvoste/0-click-RCE-Exploit-for-CVE-2024-1092414 stars
- m3ssap0/wordpress-really-simple-security-authn-bypass-vulnerable-application8 stars
- Maalfer/CVE-2024-10924-PoC6 stars
and 16 more repositories
Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.
Timeline
- 14 Nov 2024First public exploit or proof of concept
- 15 Nov 2024Published1 day later
- 15 Nov 2024CISA SSVC assessment: exploitation none1 day later
- 23 Jan 2026CVE record last updated434 days (about 1 year) later
- 12 Nov 2026Analysed by vulneraibility.com293 days (about 10 months) later
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Metric | Value | What it means |
|---|---|---|
| Attack vector | NetworkReachable over the internet or any routable network. | Reachable over the internet or any routable network. |
| Attack complexity | LowRepeatable attack, no special conditions. | Repeatable attack, no special conditions. |
| Privileges required | NoneThe attacker needs no prior access. | The attacker needs no prior access. |
| User interaction | NoneNo victim action needed. | No victim action needed. |
| Scope | UnchangedImpact stays within the vulnerable component. | Impact stays within the vulnerable component. |
| Confidentiality | HighTotal data disclosure possible. | Total data disclosure possible. |
| Integrity | HighComplete modification possible. | Complete modification possible. |
| Availability | HighFull outage possible. | Full outage possible. |
Common questions
Is CVE-2024-10924 being exploited?
Not confirmed. CVE-2024-10924 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 82% probability of exploitation in the next 30 days.
How severe is CVE-2024-10924?
CVE-2024-10924 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2024-10924?
Yes. A fix has been recorded for CVE-2024-10924. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2024-10924 affect?
CVE-2024-10924 affects really-simple-plugins:really_simple_security. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
References
7 references in the CVE record, grouped by the tags the record gives them.
Other links (7)
- wordfence.com /threat-intel/vulnerabilities/id/7d5d05ad-1a7a-43d2-bbbf-597e975446be?source=cve
- plugins.trac.wordpress.org /browser/really-simple-ssl/tags/9.1.1.1/security/wordpress/two-fa/class-rsssl-tw
- plugins.trac.wordpress.org /browser/really-simple-ssl/tags/9.1.1.1/security/wordpress/two-fa/class-rsssl-tw
- plugins.trac.wordpress.org /browser/really-simple-ssl/tags/9.1.1.1/security/wordpress/two-fa/class-rsssl-tw
- plugins.trac.wordpress.org /changeset/3188431/really-simple-ssl
- wordfence.com /blog/2024/11/really-simple-security-vulnerability/
Show 1 more
- github.com /JoshuaProvoste/0-click-RCE-Exploit-for-CVE-2024-10924
Where the data on this page comes from
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Exploit-DB: published exploits
- Metasploit Framework: exploit and scanner modules
- Nuclei templates: detection templates
- PoC-in-GitHub: GitHub repositories that claim a proof of concept
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.
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