CVE-2026-117535GHSA-5293-gg47-5xmh
core: REDAXO before 5.21.3 Reflected XSS via opener_link in Media Pool
redaxo core
CVSS
5.1MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
What fixes it
- 5.21.3coreCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
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.
Text from CVE List
Affected versions 2
- coreaffected: all versions before 5.21.3CVE List
- coreunaffected: 5.21.3CVE List