CVE-2026-117533

LOW CVSS 4.0: 2.1
Updated Oct 27, 2026
Redaxo
Parameter Value
CVSS 2.1 (LOW)
Affected Versions 5.18.0 — 5.21.4
Fixed In 5.21.4
Type CWE-79 (Cross-Site Scripting (XSS))
Vendor Redaxo
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
Passive
Minimal interaction

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v4.0

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Redaxo Redaxo
cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:*
5.18.0 5.21.4