What’s Vulnerable › Vulnerabilities

CVE-2025-63589

• Severity: high (CVSS 7.1 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: yes
• Published: 2025-11-06 · updated 2026-06-17
• Weakness: CWE-79

Description

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 products

• Cmsimple-Xh CMSimple_XH: 1.8.0

References

• https://github.com/cmsimple-xh/cmsimple-xh/blob/master/index.php
• https://github.com/cybercrewinc/CVE-2025-63589
• https://github.com/cybercrewinc/CVE-2025-63589

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