High 8.1Published Oct 17, 2026

CVE-2026-111909phpMyFAQ before 4.1.9 Missing Authorization Allows Superadmin Deletion via deleteUser API

Updated under an hour ago (Oct 28, 2026, 3:50 PM ET)

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It affects thorsten phpMyFAQ. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.27%, higher than 20% of scored CVEs.

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Every CVE for thorsten phpMyFAQ

Exploited in the last 30 days

phpMyFAQ before 4.1.9 contains a missing authorization vulnerability in the deleteUser() API that allows authenticated non-superadmin users with delete_user permission to delete superadmin accounts. Attackers can send a DELETE request to /admin/api/user/delete with a superadmin's userId other than 1, removing administrative access and accountability.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-269
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.27% (percentile 20)
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 18, 2026
First seen by InfoSec Signals: Oct 17, 2026

Affected products

Affected products

thorsten phpMyFAQ thorsten:phpmyfaq (from the name)	before 4.1.9; 4.1.9 not affected	CNA record

References

References

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-7j43-ww55-pm3g	vendor-advisory
https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.9-missing-authorization-allows-superadmin-deletion-via-deleteuser-api	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.