AIKIDO-2026-10211
craftcms/cms is vulnerable to Cross-site Scripting (XSS)
35
Low Risk
This Affects:
craftcms/cmsTL;DR
Affected versions of this package are vulnerable to cross-site scripting (XSS). The returnUrl value in the setReturnUrl function is not properly validated, allowing URLs with unsafe schemes to be supplied and later used in redirects. This can allow attackers to inject malicious content or execute script code in the user’s browser.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
craftcms/cms is vulnerable to Cross-site Scripting (XSS) in versions 3.5.0 - 4.17.2 and 5.0.0 - 5.9.6.
How to fix this
Upgrade the craftcms/cms library to the patch version.
Are You Affected?
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SOC 2Compliant
ISO 27001Compliant