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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.

PUBLISHED Reserved 2026-07-09 | Published 2026-07-09 | Updated 2026-07-09 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
MEDIUM: 4.3CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
5.0AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR

Problem types

Cross Site Scripting

Code Injection

Timeline

2026-07-09:Advisory disclosed
2026-07-09:VulDB entry created
2026-07-09:VulDB entry last update

Credits

weng (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/377124 (VDB-377124 | YzmCMS Header yzmphp.php get_url cross site scripting) vdb-entry technical-description

vuldb.com/vuln/377124/cti (VDB-377124 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-15202 (CVE-2026-15202 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/851931 (Submit #851931 | YzmCMS YzmCMS Content Management System V7.5 CWE-79) third-party-advisory

gist.github.com/188452/72d03d030ee3cbfee2642badfa9dce33 exploit

cve.org (CVE-2026-15202)

nvd.nist.gov (CVE-2026-15202)

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