CVE-2026-76210

phpMyFAQ before 4.1.6 does not adequately sanitize HTML in FAQ answers before generating PDFs via TCPDF. An attacker with permission to create or edit FAQ content can embed an <img> tag whose src references a local file under the web root's content/ directory (e.g., content/core/config/database.php). When the PDF is generated, phpMyFAQ attempts to read the referenced file; because it is not a valid image the resulting error is converted into an uncaught exception whose stack trace discloses part of the file's contents to any user who triggers the PDF export. By default the disclosed portion is truncated (zend.exception_string_param_max_len), but a larger configured value can result in disclosure of entire files, including database credentials.

• CWE-73

• https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-c63q-xx7x-j8w2Exploit, Mitigation, Vendor Advisory
• https://www.vulncheck.com/advisories/phpmyfaq-before-local-file-disclosure-via-pdf-exportThird Party Advisory
• https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-c63q-xx7x-j8w2Exploit, Mitigation, Vendor Advisory

Published

Aug 19, 2026

Last Modified

Sep 1, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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