Reflected XSS Vulnerability in CMSimple_XH by CMSimple
CVE-2025-63589

7.1HIGH

Key Information:

Vendor

CMSimple

Status
CMSimple_XH
Vendor
CVE Published:
6 November 2025

What is CVE-2025-63589?

CMSimple_XH 1.8 is susceptible to a reflected XSS vulnerability due to improper sanitization of attacker-controlled path segments in the index.php router. When these unsanitized inputs are reflected in HTML elements such as navigation links and breadcrumbs, it can lead to arbitrary JavaScript execution in the browsers of users who visit a crafted URL. This vulnerability exposes users to a range of security risks, including data theft and session hijacking.

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References

https://github.com/cmsimple-xh/cmsimple-xh/blob/master/in...
https://github.com/cybercrewinc/CVE-2025-63589

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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