REDAXO from 5.18.0 before 5.21.4 contains a stored cross-site scripting vulnerability because rex_media_service moves uploaded SVG files into the public media folder before sanitizing them. Authenticated users with mediapool upload rights can race the sanitizer or exhaust memory limits to leave script-laden SVGs publicly served, executing scripts in victims' backend sessions.
History

Tue, 27 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 27 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Redaxo core
Vendors & Products Redaxo core

Tue, 27 Oct 2026 11:15:00 +0000

Type Values Removed Values Added
Description REDAXO from 5.18.0 before 5.21.4 contains a stored cross-site scripting vulnerability because rex_media_service moves uploaded SVG files into the public media folder before sanitizing them. Authenticated users with mediapool upload rights can race the sanitizer or exhaust memory limits to leave script-laden SVGs publicly served, executing scripts in victims' backend sessions.
Title REDAXO 5.18.0 before 5.21.4 Stored XSS via Unsanitized Mediapool SVG Uploads
First Time appeared Redaxo
Redaxo redaxo
Weaknesses CWE-79
CPEs cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:*
Vendors & Products Redaxo
Redaxo redaxo
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-27T10:59:29.443Z

Updated: 2026-10-27T14:12:29.808Z

Reserved: 2026-10-27T10:33:39.045Z

Link: CVE-2026-117533

cve-icon Vulnrichment

Updated: 2026-10-27T13:42:33.316Z

cve-icon NVD

Status : Deferred

Published: 2026-10-27T11:17:33.737

Modified: 2026-10-27T15:05:24.450

Link: CVE-2026-117533

cve-icon Redhat

No data.