Vulnerability · Published Oct 17, 2026 · Assigned by VulnCheck

CVE-2026-111890phpMyFAQ 4.2.0-alpha.2 before 4.2.0-beta Privilege Escalation via updateUserRights

Medium 5.5

In plain English

A medium-severity privilege mismanagement in phpMyFAQ from thorsten. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.3%top 79.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

phpMyFAQ from 4.2.0-alpha.2 before 4.2.0-beta contains a privilege escalation vulnerability in UserController::updateUserRights that drops per-right language restrictions when rights are re-granted. Administrators holding USER_EDIT can submit language-scoped rights to the update-rights API, including for themselves, to gain unrestricted FAQ create, edit, and publish access across all languages.

Affected products (as reported)

Vendor	Product	Versions
thorsten	phpMyFAQ	4.2.0-alpha.2 – before 4.2.0-beta

Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N

References

GitHub Security Advisory (GHSA-3666-fmjj-qm5h) vendor-advisory
VulnCheck Advisory: phpMyFAQ 4.2.0-alpha.2 before 4.2.0-beta Privilege Escalation via updateUserRights third-party-advisory