CVE-2026-21857

MEDIUM

6.5

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung6.5

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienHIGH

BenutzerinteraktionNONE

Veroffentlicht1/7/2026

Zuletzt geandert1/20/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

redaxo:redaxo

Schwachen (CWE)

CWE-22CWE-24

Referenzen

https://github.com/redaxo/redaxo/releases/tag/5.20.2(security-advisories@github.com)

https://github.com/redaxo/redaxo/security/advisories/GHSA-824x-88xg-cwrv(security-advisories@github.com)

https://github.com/redaxo/redaxo/security/advisories/GHSA-824x-88xg-cwrv(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Korrelationen

Keine Korrelationen erfasst

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