CVE-2026-58030

SyntaxHighlight stored XSS via unsanitized 'linelinks' attribute

Published: Jul 1, 2026Updated: Jul 9, 2026 Sources: CVE List NVDCWE-79

6.1MEDIUM

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation SyntaxHighlight_GeSHi. This vulnerability is associated with program files includes/SyntaxHighlight.Php. This issue affects SyntaxHighlight_GeSHi: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:RUser Interaction

Required

Scope

S:CScope

Changed

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-79

Affected Products

oss-project·US

oss-project·USaka wikimedia

SyntaxHighlight_GeSHiSaaS

Web & CMS Plugins / cms-core

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Execution

Initial Access

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References

https://phabricator.wikimedia.org/T427167

phabricator.wikimedia.org

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