Yzmcms · Yzmcms · CVE-2026-29933
**Name of the Vulnerable Software and Affected Versions**
YZMCMS version 7.4
**Description**
A reflected cross-site scripting (XSS) issue exists in the `/index/login.html` component. This allows attackers to execute arbitrary Javascript within the user's browser by modifying the `referrer` value in the request header. The affected API endpoint is `/index/login.html`.
**Recommendations**
Update YZMCMS to a version that addresses this issue. As a temporary workaround, sanitize the `referrer` header value before processing it in the `/index/login.html` component.