CVE-2026-63002
REDAXO: Stored XSS in Mediapool Sync Page via Unescaped Filesystem Filenames
MEDIUM 4.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.20 % · percentile 9 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Analyzed
Description
REDAXO is a PHP-based content management system. Prior to 5.21.2, redaxo/src/addons/mediapool/pages/sync.php inserts filenames held in $diffFiles from the media filesystem into the Mediapool Sync page without rex_escape(). An attacker who can place an unregistered file with HTML metacharacters in the media directory can execute script in the browser of a backend user with media[sync] permission when that user opens the Sync page, enabling session theft or unauthorized backend actions. This issue is fixed in version 5.21.2.
Weaknesses (CWE)
- CWE-79 — Improper Neutralization of Input During Web Page Generation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N | GitHub_M |
| CVSS 3.1 | MEDIUM 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N | NVD · security-advisories@github.com (Secondary) |
Advisories
- GHSA-w998-qmw9-mf4m — REDAXO: Stored XSS in Mediapool Sync Page via Unescaped Filesystem Filenames
European references
- ENISA EUVD · EUVD-2026-85331
- GCVE · GCVE-0-2026-63002
Affected configurations (NVD CPE)
cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:*< 5.21.2
Affected products
| Product | Versions |
|---|---|
| redaxo · core | affected < 5.21.2 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |