Medium severity · published Oct 17, 2026
CVE-2026-111895
phpMyFAQ 3.2.0 before 4.0.0 and 4.0.2 before 4.2.0-beta Account Takeover via Entra ID preferred_username
6.8
CVSS
0.4%
EPSS
No
On KEV
Description
phpMyFAQ 3.2.0 before 4.0.0 and 4.0.2 before 4.2.0-beta contains an authentication bypass in its Microsoft Entra ID login flow, which links users by the mutable preferred_username claim and whose AuthEntraId::create() ignores the duplicate-login exception while continuing with the existing local account. Attackers controlling an Entra identity in the configured tenant with a matching preferred_username can take over that local account, including super-admin accounts.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
phpMyFAQ · thorsten
3.2.0 before 4.0.0; 4.0.2 before 4.2.0-beta · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-111895
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-111895
github.com
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-6hhv-gc4g-f4r7
www.vulncheck.com
https://www.vulncheck.com/advisories/phpmyfaq-3.2.0-before-4.0.0-and-4.0.2-before-4.2.0-beta-account-takeover-via-entra-id-preferred-username
More from phpMyFAQ
9.8
CVE-2026-111911
phpMyFAQ 4.0.0 before 4.1.9 Authentication Bypass via WebAuthn Credential Injection
9.8
CVE-2026-46364
phpMyFAQ - SQL Injection via User-Agent Header in BuiltinCaptcha
9.4
CVE-2026-66398
phpMyFAQ before 4.1.6 Remote Code Execution via Configuration API
9.1
CVE-2026-45010
phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint
8.8
CVE-2026-75918
phpMyFAQ before 4.1.7 Authentication Bypass via Tracking File