CVE-2026-111908
HIGH 8.7phpMyFAQ 4.0.0 before 4.1.9 and 4.2.0-alpha before 4.2.0-beta contains a broken object-level authorization vulnerability in the PUT /api/v3.1/faq/update endpoint, which checks only the global edit_faq permission and does not verify access to the target FAQ. Authenticated users with edit_faq permission can supply the ID of a restricted FAQ they cannot view to modify its content, bypass moderation, and change its publication state.
Severe if exploited (CVSS 8.7), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.4%chance of exploitation in 30 days · 31st percentile
Impact if exploited
8.7CVSS 4.0 · HIGH
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityLow
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires a low-privilege account
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Data snapshot:
Weakness (CWE)
- CWE-639: Authorization Bypass Through User-Controlled Key
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
References and research data (JSON)
All CVSS metrics
- HIGH 8.7 v4.0 · CNA Primary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N - HIGH 8.3 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L - HIGH 8.7 v4.0 · NVD Secondary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - HIGH 8.3 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
References
Exploit-tagged references (not proof of a PoC)
- https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-j3px-r7cr-r26r CVE record · VulnCheck · Updated 2026-10-17T18:46:26.780Z
CVE record · CISA-ADP · Updated 2026-10-19T21:33:12.329Z
NVD · CVE-2026-111908 · Updated 2026-10-19T22:17:04.710
Advisories
- https://www.vulncheck.com/advisories/phpmyfaq-4.0.0-before-4.1.9-and-4.2.0-alpha-before-4.2.0-beta-bola-in-faq-update-via-rest-api CVE record · VulnCheck · Updated 2026-10-17T18:46:26.780Z
NVD · CVE-2026-111908 · Updated 2026-10-19T22:17:04.710 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103312 EUVD · EUVD-2026-103312