CVE-2026-111909CWE-269privilege-escalation

CVE-2026-111909

High · published October 17, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
18.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS v4.0
7.2 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00275 · 18.8th percentile
Weakness
CWE-269 · Improper Privilege Management
Published
2026-10-17T23:16Z
References (2)
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-7j43-ww55-pm3g · [email protected]https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.9-missing-authorization-allows-superadmin-deletion-via-deleteuser-api · [email protected]
EPSS history
Timeline
  • 19 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 17 OCT 18:46Z
    phpMyFAQ before 4.1.9 Missing Authorization Allows Superadmin Deletion via deleteUser API
    cvelistv5
  • 17 OCT 18:46Z
    phpMyFAQ before 4.1.9 Missing Authorization Allows Superadmin Deletion via deleteUser API
    cvelistv5