Casdoor vulnerable to Stored XSS via Application formCss / formSideHtml
Date: 2026-04
Affected: go/github.com/casdoor/casdoor
Attack vector: xss
Category: vulnerability-disclosure
Severity: Low
CVE: CVE-2026-5468
CWE: CWE-79
CVSS: 3.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N)

A security flaw has been discovered in Casdoor 2.356.0. This affects the function dangerouslySetInnerHTML. Performing a manipulation of the argument formCss/formCssMobile/formSideHtml results in cross site scripting. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.


Mitigations:

Architectural layers (MAESTRO):