CVE-2026-117535
REDAXO before 5.21.3 Reflected XSS via opener_link in Media Pool
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
REDAXO before 5.21.3 contains a reflected cross-site scripting vulnerability in the backend media pool detail page, where the opener_link parameter is rendered without HTML escaping. Unauthenticated attackers can lure logged-in backend users with media permissions into clicking a crafted link. The injected script can then read the CSRF token and perform actions with the victim's permissions, including code execution via template or module edits when the victim is an administrator.
| CWE | CWE-79 |
| Vendor | redaxo |
| Product | core |
| Published | Oct 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
redaxo / core
0 < 5.21.3
References
Credits
🔍 V-C-Williams