CVE-2026-21857highCWE-22CWE-24

CVE-2026-21857: fallo de gravedad alta en redaxo

Redaxo has Path Traversal in Backup Addon Leading to Arbitrary File Read

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear redaxo+ Monitorear redaxo/source

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 8.3epss 0.5%
REDAXO is a PHP-based content management system. Prior to version 5.20.2, authenticated users with backup permissions can read arbitrary files within the webroot via path traversal in the Backup addon's file export functionality. The Backup addon does not validate the `EXPDIR` POST parameter against the UI-generated allowlist of permitted directories. An attacker can supply relative paths containing `../` sequences (or even absolute paths inside the document root) to include any readable file in the generated `.tar.gz` archive. Version 5.20.2 fixes this issue.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N
Productos afectados
redaxo · redaxo
CVEs relacionadas — redaxo

En el mismo producto, de las más peligrosas a las menos.

CVE-2025-66026MEDIUMREDAXO is Vulnerable to Reflected XSS in Mediapool Info Banner via args[types]EPSS 0.3%CVE-2025-27412MEDIUMREDAXO allows Authenticated Reflected Cross Site Scripting - packages installationEPSS 0.3%CVE-2025-27411MEDIUMREDAXO allows Arbitrary File Upload in the mediapool pageEPSS 0.3%