PT-2026-28390 · Yzmcms · Yzmcms

Qk121 · Published 2026-03-26 · Updated 2026-03-29 · CVE-2026-29933

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-29933

Affected Products

Yzmcms

References · 4

• 🔥 https://github.com/yzmcms/yzmcms/issues/69 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-29933 · Security Note
• https://twitter.com/CVEnew/status/2038135238912770405 · Twitter Post
• https://twitter.com/infoflowcloud/status/2038136806982451326 · Twitter Post