CVE-2026-117538

MediumCVSS 4.1/10Last modified Nov 4, 2026

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.

Metrics

CVSS 3.1 4.1/10CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
redaxo	core	< 5.21.0

References

Timeline

Published: Oct 27, 2026
Last modified: Nov 4, 2026
NVD status: Deferred

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