CVE-2025-63589: A reflected XSS vulnerability exists in CMSimple_XH 1.8's index.php router when attacker-controlled path segments are not sanitized or encoded before being…

PriorityP433high7.1CVSS 3.1

AVNACLPRNUIRSUCHILAN

EPSS

0.29%

20.5th percentile

A reflected XSS vulnerability exists in CMSimple_XH 1.8's index.php router when attacker-controlled path segments are not sanitized or encoded before being inserted into the generated HTML (navigation links, breadcrumbs, search form action, footer links). An attacker-controlled string placed in the URL path is reflected into multiple HTML elements, allowing execution of arbitrary JavaScript in victims' browsers visiting a crafted URL.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
cmsimple-xh	cmsimple_xh	—	—

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