CVE-2026-15202: YzmCMS Header yzmphp.php get_url cross site scripting

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-09 · updated 2026-07-09
Weakness: CWE-79

Description

A security vulnerability has been detected in YzmCMS up to 7.5. Affected is the function get_url of the file /yzmphp/yzmphp.php of the component Header Handler. The manipulation of the argument HTTP_HOST leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

YzmCMS: 7.0, 7.1, 7.2, 7.3, 7.4, 7.5

References

https://gist.github.com/188452/72d03d030ee3cbfee2642badfa9dce33
https://vuldb.com/cve/CVE-2026-15202
https://vuldb.com/submit/851931
https://vuldb.com/vuln/377124
https://vuldb.com/vuln/377124/cti

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