How to fix CVE-2025-68859?

Within 24 hours: Identify all applications and services using agmorpheus Syntax Highlighter Compress and document exposure scope. Within 7 days: Deploy Web Application Firewall (WAF) rules to block malicious script injection targeting the syntax highlighter endpoints; consider disabling the affected feature if non-critical. Within 30 days: Evaluate alternative syntax highlighting libraries or contact vendor for patch status; implement input validation and output encoding on all user-supplied content processed by the highlighter.

CVE-2025-68859

HIGH

2026-01-22 [email protected]

XSS

7.1

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Jan 22, 2026 - 17:16 nvd

HIGH 7.1

DescriptionNVD

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in agmorpheus Syntax Highlighter Compress syntax-highlighter-compress allows Reflected XSS.This issue affects Syntax Highlighter Compress: from n/a through <= 3.0.83.3.

AnalysisAI

agmorpheus Syntax Highlighter Compress syntax-highlighter-compress is affected by cross-site scripting (xss) (CVSS 7.1).

Technical ContextAI

This vulnerability (CWE-79: Cross-site Scripting (XSS)) affects agmorpheus Syntax Highlighter Compress syntax-highlighter-compress. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in agmorpheus Syntax Highlighter Compress syntax-highlighter-compress allows Reflected XSS.This issue affects Syntax Highlighter Compress: from n/a through <= 3.0.83.3.

Affected ProductsAI

Product: agmorpheus Syntax Highlighter Compress syntax-highlighter-compress.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

CVE-2025-68859 vulnerability details – vuln.today

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