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high advisory

phpMyFAQ: Object-level authorization bypass (CVE-2026-116183)

An object-level authorization bypass in phpMyFAQ versions prior to 4.1.10 allows unauthenticated attackers to modify or delete visitor questions via the API.

CVE search metadata

CVE search record: CVE-2026-116183. Severity: high. CVSS: 7.5. KEV: no. Product: phpMyFAQ (< 4.1.10). Brief: phpMyFAQ: Object-level authorization bypass (CVE-2026-116183). Brief link: https://feed.craftedsignal.io/briefs/2026-10-phpmyfaq-auth-bypass/

Triage facts

Revision 1
Applicability
phpMyFAQ (< 4.1.10)
Evidence
Unknown
Severity
High
Action
Elevated
Sources
1 public source
Freshness
Revision 1Oct 25, 14:32 UTC
Vulnerabilities
1 CVE
Source quality
A1Likely

phpMyFAQ versions prior to 4.1.10 contain an object-level authorization bypass vulnerability (CVE-2026-116183). The vulnerability resides in the POST /api/faq/create endpoint, where insufficient validation of the openQuestionID parameter allows unauthenticated actors to modify or delete visitor questions. Successful exploitation requires solving the CAPTCHA and allows attackers to rewrite categories, forge entries in faqquestion_history, or delete questions if the records.enableDeleteQuestion configuration is active.

Impact

Unauthorized modification or deletion of visitor questions, manipulation of question categories, and potential corruption of question history records.

Recommendation

  • Upgrade phpMyFAQ to version 4.1.10 or later immediately.
  • If patching is delayed, audit web server logs for suspicious POST requests to /api/faq/create containing openQuestionID parameters.
  • Disable records.enableDeleteQuestion in the application configuration to prevent unauthorized question deletion until the patch is applied.

Immediate actions

Upgrade phpMyFAQ to 4.1.10 or later

IT Operations 24h

Threat Hunt

Monitor web server logs for POST requests to /api/faq/create containing arbitrary openQuestionID values

T1068 high medium confidence hunt now

Data: Web server access logs

Mitigations

Disable records.enableDeleteQuestion in the configuration

immediate IT Operations

CVE-2026-116183