CVE-2026-117538

low

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.

References

https://www.vulncheck.com/advisories/redaxo-before-5.21.0-reflected-xss-via-packages-api-function-parameter

https://github.com/redaxo/core/security/advisories/GHSA-xq4j-g85q-wf97

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-110803

Details

Source: Mitre, NVD

Published: 2026-10-27

Updated: 2026-10-27

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:H/Au:M/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 4.1

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

Severity: Medium

CVSS v4

Base 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

Severity: Low