CVE Watch16 oct 2026

CVE-2026-55695

FearlessCMS is a flat-file content management system centered on simplicity and open source. In 0.1.2b and earlier, an authenticated adminis

CVSS

9.1

Crítico

EPSS

0.5%

p39

KEV

—

Exploit Today

0-100

Publicado: 13 oct 2026 · Última mod.: 16 oct 2026 · CWE-94

EPSS · 30d

0.5%EPSS · 30 días0.5%

2026-10-142026-10-22

Descripción técnica

FearlessCMS is a flat-file content management system centered on simplicity and open source. In 0.1.2b and earlier, an authenticated administrator can set an arbitrary Git repository URL through admin/updater-handler.php and trigger perform_update, which passes the URL to update.sh. The updater clones the repository and replaces the live plugins/, admin/, and includes/ directories without verifying the repository's identity, signatures, or contents. Because router.php permits existing PHP files under plugins to be executed by the PHP development server, attacker-supplied update content can execute arbitrary PHP with the web server process's privileges and persist as a backdoor. This issue is fixed in version 0.1.3b.

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