CVE-2026-55825
CVE-2026-55825 · Contao: Possible path traversal in job download URIs
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
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 · Faible · EPSS 0,3% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: php
Produits et versions concernés
contao
- Versions du logiciel
- >= 5.7.0, < 5.7.7: Concernée
Aucun correctif publié
contao/contao Packagist
- Versions du logiciel
- 5.7.0
- 5.7.1
- 5.7.2
- 5.7.3
- 5.7.4
- 5.7.5
- 5.7.6
- Plages de versions concernées
- ECOSYSTEM: ≥ 5.7.0, < 5.7.7
Mettez à jour vers 5.7.7
contao/core-bundle Packagist
- Versions du logiciel
- 5.7.0
- 5.7.1
- 5.7.2
- 5.7.3
- 5.7.4
- 5.7.5
- 5.7.6
- Plages de versions concernées
- ECOSYSTEM: ≥ 5.7.0, < 5.7.7
Mettez à jour vers 5.7.7