CVE-2026-117538
REDAXO before 5.21.0 Reflected XSS via Packages API function Parameter
CVSS Score
4.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | redaxo |
| Product | core |
| Published | Oct 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Affected Versions
redaxo / core
0 < 5.21.0
References
Credits
🔍 NumberOreo1