CVE-2026-21857
CVE-2026-21857 · Redaxo has Path Traversal in Backup Addon Leading to Arbitrary File Read
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
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 8.3 · Élevée · EPSS 0,5% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: php
Produits et versions concernés
redaxo
- Versions du logiciel
- < 5.20.2: Concernée
Aucun correctif publié
redaxo/source Packagist
- Versions du logiciel
- 5.10.0
- 5.10.0-beta1
- 5.10.0-beta2
- 5.10.1
- 5.11.0
- 5.11.0-beta1
- 5.11.1
- 5.11.2
- 5.12.0
- 5.12.0-beta1
- 5.12.0-beta2
- 5.12.0-beta3
- 5.12.1
- 5.13.0
- 5.13.0-beta1
- 5.13.0-beta2
- 5.13.1
- 5.13.2
- 5.13.3
- 5.14.0
- 5.14.0-beta1
- 5.14.0-beta2
- 5.14.1
- 5.14.2
- 5.14.3
- 5.15.0
- 5.15.0-beta1
- 5.15.1
- 5.16.0
- 5.16.0-beta1
- 5.16.1
- 5.17.0
- 5.17.1
- 5.18.0
- 5.18.1
- 5.18.2
- 5.18.3
- 5.19.0
- 5.20.0
- 5.20.1
- Plages de versions concernées
- ECOSYSTEM: < 5.20.2
Mettez à jour vers 5.20.2