GHSA-xq4j-g85q-wf97: REDAXO has reflected XSS backend packages API via function parameter (CSRF token required)

April 10, 2026

A reflected XSS vulnerability has been identified in the REDAXO backend. The function parameter is concatenated into an API error message and rendered without HTML escaping.

References

github.com/advisories/GHSA-xq4j-g85q-wf97
github.com/redaxo/core
github.com/redaxo/core/releases/tag/5.21.0
github.com/redaxo/core/security/advisories/GHSA-xq4j-g85q-wf97

Code Behaviors & Features

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