---
cve: "CVE-2026-76212"
severity: "MEDIUM"
cvss: 6.9
epss: "30%"
vendor: "thorsten"
kev: false
exploited: false
published: "2026-08-19 14:17:46"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-05T17:53:00+02:00"
---

# CVE-2026-76212

> 6.9 MEDIUM · 🧪 PoC

## Beschreibung

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-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 28d6f641c16e3015d51d0a01d14841b845251f35 (Commit)

## Referenzen

- <https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5hx6-c293-588h>
- <https://www.vulncheck.com/advisories/phpmyfaq-before-like-wildcard-injection-via-postgresql>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-76212) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_