Information disclosure in phpMyFAQ open-questions API
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
phpMyFAQ from 4.2.0-alpha before 4.2.0-beta discloses hidden open questions to unauthenticated users. An inverted api.onlyPublicQuestions check in OpenQuestionController lets an unauthenticated remote attacker send GET requests to the /api/v4.0/open-questions endpoint and read non-public moderation or internal questions along with their associated usernames. This flaw is classified as CWE-200.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an information disclosure vulnerability that allows unauthenticated attackers to read hidden open questions due to an inverted api.onlyPublicQuestions check in OpenQuestionController. Attackers can send GET requests to the /api/v4.0/open-questions endpoint to retrieve non-public moderation or internal questions and their associated usernames.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Upgrade phpMyFAQ to 4.2.0-beta or later. The sources list no fixed version for phpMyFAQ other than 4.2.0-beta.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA phpMyFAQ (thorsten) Fixed in 4.2.0-beta
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
thorsten phpMyFAQ 4.2.0-beta
24 records Highest priority Priority HIGH 10 HIGH, 10 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2026-76108 Unauthenticated denial of service in phpMyFAQ API paginationPriority HIGH 77
- TI-2026-76115 Authorization bypass in phpMyFAQ REST API edits restricted FAQsPriority HIGH 73
- TI-2026-76092 phpMyFAQ e-mail change lacks password check, enabling takeoverPriority HIGH 73
Timeline
- 2026-10-18 Threatist record created from CVE-2026-111904
- 2026-10-18 Alias added: GHSA-xmh2-49v9-xw88
References
More thorsten vulnerabilities
- TI-2023-00296 Improper Authentication in thorsten/phpmyfaq CVSS 3.1CRITICAL 9.8
- TI-2026-76118 Authentication bypass in phpMyFAQ via WebAuthn credential injection CVSS 4.0CRITICAL 9.3
- TI-2026-32868 phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint CVSS 4.0CRITICAL 9.3
- TI-2026-76108 Unauthenticated denial of service in phpMyFAQ API pagination CVSS 4.0HIGH 8.7
- TI-2026-53313 phpMyFAQ 3.1.0 through 4.1.6 Authentication Bypass via LDAP CVSS 4.0HIGH 8.8
- TI-2026-34083 phpMyFAQ - Unauthenticated Information Disclosure via getIdFromSolutionId Permission Bypass CVSS 4.0HIGH 8.7
Sources
- CVE-2026-111904 · CVE Program
- CVE-2026-111904 · NVD
- FIRST EPSS
- GHSA-xmh2-49v9-xw88 · GitHub Advisory Database · CC BY 4.0
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