CVE-2025-59943: phpmyfaq Improper Access Control
Vulnerability summary
CVE-2025-59943 is a critical (CVSS 9.8) Improper Access Control vulnerability in phpmyfaq. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 34.7% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 03-10-2025PublishedVulnerability first disclosed.
- 03-10-2025Last modifiedVulnerability information updated.
Description
phpMyFAQ is an open source FAQ web application. Versions 4.0-nightly-2025-10-03 and below do not enforce uniqueness of email addresses during user registration. This allows multiple distinct accounts to be created with the same email. Because email is often used as an identifier for password resets, notifications, and administrative actions, this flaw can cause account ambiguity and, in certain configurations, may lead to privilege escalation or account takeover. This issue is fixed in version 4.0.13.
CVSS metrics
2 scores · 2 sources · 1 version- CVE.orgCNA8.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:NDiffers
EPSS trend
Probability
0.42%
Chance of exploitation in the next 30 days
Percentile
35%
Versus all other CVEs
30-day change
0.00 pp
From 0.42% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundPhpmyfaq
Maturity: poc
Weaknesses
CWE · root causeAffected systems
2 vendors · 2 products
References
2 links- github.com/thorsten/phpMyFAQ/security/advisories/GHSA-9wj2-4hcm-r74jX Refsource CONFIRMExploitVendor Advisory