Medium 5.3Published Aug 19, 2026

CVE-2026-76212phpMyFAQ before 4.1.7 LIKE Wildcard Injection via PostgreSQL

Updated under an hour ago (2026-10-19 09:40 UTC)

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It affects thorsten phpMyFAQ and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for thorsten phpMyFAQ

Exploited in the last 30 days

phpMyFAQ before 4.1.7, when configured to use PostgreSQL via the native pgsql PHP extension, declares an incorrect LIKE ESCAPE character ('=') in the Search/Database/Pgsql.php backend while escapeLikeWildcards() escapes user input with the '|' prefix. As a result, wildcard escaping is a no-op and user-supplied % and _ characters remain active LIKE wildcards. An unauthenticated attacker can submit such characters in the public FAQ search form to force maximally broad pattern matches and expensive sequential scans, resulting in a denial of service. The PDO PostgreSQL backend is not affected, and quotes remain escaped so this does not enable quote-breaking SQL injection or data exfiltration.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE): CWE-88
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Aug 25, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

thorsten phpMyFAQ thorsten:phpmyfaq (from the name)	4.2.0-alpha builds before 4.1.7; 4.1.7 not affected	CNA record
phpmyfaq phpmyfaq phpmyfaq:phpmyfaq	before 4.1.7	NVD

References

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5hx6-c293-588hvendor-advisory, exploit, mitigation
https://www.vulncheck.com/advisories/phpmyfaq-before-like-wildcard-injection-via-postgresqlthird-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.