CVE-2026-55825
CVE-2026-55825 · Contao: Possible path traversal in job download URIs
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
Contao is an Open Source CMS. In versions 5.7.0 through 5.7.6, an authenticated backend user who can access one job can request an attachment identifier containing ../ segments and make the job attachment download endpoint read a file from another job directory inside var/job-attachments. The controller authorizes only the jobUuid route parameter. The later attachment lookup joins that authorized job UUID with the attacker-controlled identifier, then passes the combined path to the virtual filesystem. VirtualFilesystem::resolve() canonicalizes the whole path and only rejects paths that escape the filesystem mount, so authorized-job/../victim-job/debug_log.csv becomes victim-job/debug_log.csv. This is a cross-job authorization bypass for known job attachment paths. It is not a practical brute-force against unknown jobs because job directories are UUID v4 values.
CVSS 3.1 · Baja · EPSS 0,3% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: php
Productos y versiones afectados
contao
- Versiones
- >= 5.7.0, < 5.7.7: Afectada
Sin corrección publicada
contao/contao Packagist
- Versiones
- 5.7.0
- 5.7.1
- 5.7.2
- 5.7.3
- 5.7.4
- 5.7.5
- 5.7.6
- Intervalos de versiones afectados
- ECOSYSTEM: ≥ 5.7.0, < 5.7.7
Actualiza a 5.7.7
contao/core-bundle Packagist
- Versiones
- 5.7.0
- 5.7.1
- 5.7.2
- 5.7.3
- 5.7.4
- 5.7.5
- 5.7.6
- Intervalos de versiones afectados
- ECOSYSTEM: ≥ 5.7.0, < 5.7.7
Actualiza a 5.7.7