CVE-2025-30903 - CVE House

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Status published Medium CVE-2025-30903

WordPress SyntaxHighlighter Evolved plugin <= 3.7.1 - Cross Site Scripting (XSS) vulnerability

6.5 CVSS

Vulnerability Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Alex Mills SyntaxHighlighter Evolved syntaxhighlighter allows DOM-Based XSS.This issue affects SyntaxHighlighter Evolved: from n/a through <= 3.7.1.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Peter Thaleikis | Patchstack Bug Bounty Program

References

https://patchstack.com/database/Wordpress/Plugin/syntaxhighlighter/vulnerability/wordpress-syntaxhighlighter-evolved-plugin-3-7-1-cross-site-scripting-xss-vulnerability?_s_id=cve

Affected Vendor

Alex Mills

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Affected Software

SyntaxHighlighter Evolved

Vulnerable Versions:

0

Timeline

Official Publish: March 27th, 2025

Last Modified: April 28th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1189 Drive-by Compromise

T1059.007 JavaScript

T1539 Steal Web Session Cookie

T1213 Data from Information Repositories

T1567 Exfiltration Over Web Service

T1491.001 Defacement