REDAXO before 5.21.0 contains a reflected cross-site scripting vulnerability in the backend packages API, where the function parameter is concatenated into an error message rendered without HTML escaping. Attackers can lure an authenticated backend user to a crafted link containing a valid CSRF token, executing JavaScript that performs same-origin actions or reads DOM data.
History

Tue, 27 Oct 2026 13:00:00 +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 before 5.21.0 contains a reflected cross-site scripting vulnerability in the backend packages API, where the function parameter is concatenated into an error message rendered without HTML escaping. Attackers can lure an authenticated backend user to a crafted link containing a valid CSRF token, executing JavaScript that performs same-origin actions or reads DOM data.
Title REDAXO before 5.21.0 Reflected XSS via Packages API function Parameter
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': 4.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L'}

cvssV4_0

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


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-27T10:59:32.772Z

Updated: 2026-10-27T10:59:32.772Z

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

Link: CVE-2026-117538

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-27T11:17:34.493

Modified: 2026-10-27T15:02:47.683

Link: CVE-2026-117538

cve-icon Redhat

No data.