6.1

CVSS Score

3.0

-

CVSS Score

Basic Information

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CVE-2018-15563

CVE-2018-15563: Subrion CMS Stored Cross-site Scripting (XSS)

_core/admin/pages/add/ in Subrion CMS 4.2.1 has XSS via the titles[en] parameter.

(GitHub Advisory)

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CVE-2018-15563

CVE-2018-15563:

6.1

CVSS Score

3.0

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
intelliants/subrion	composer	<= 4.2.1

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability manifests in the page creation endpoint (_core/admin/pages/add/) through the titles[en] parameter. Stored XSS typically requires both: 1) insufficient input sanitization during data storage, and 2) unsafe output rendering. While the exact code isn't available, the advisory specifically identifies the administrative page creation path as the injection point. In MVC-based CMS architectures like Subrion, this would correspond to a controller action handling form submissions. The high confidence comes from the precise parameter (titles[en]) and endpoint location being documented, combined with the standard pattern of XSS vulnerabilities in form handlers that lack proper input sanitization.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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