CVE-2026-56396

phpMyFAQ - Privilege Escalation via Missing Authorization in editUser() and updateUserRights()

CVSS 8.7 HIGHEPSS 0.3%CWE-862

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.7EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

21 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

phpMyFAQ before 4.1.4 contains missing authorization vulnerabilities in editUser() and updateUserRights() endpoints that allow authenticated administrators to escalate privileges. Non-SuperAdmin users with edit_user permission can set is_superadmin flag or grant arbitrary rights to escalate to SuperAdmin access.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

phpMyFAQ · phpMyFAQ

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References

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-985r-q3qp-299h https://www.vulncheck.com/advisories/phpmyfaq-privilege-escalation-via-missing-authorization-in-edituser-and-updateuserrights