CVE-2026-58030CWE-79

SyntaxHighlight stored XSS via unsanitized 'linelinks' attribute

Medium · published July 1, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
18.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00270 · 18.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-01T14:58Z
EPSS history
Timeline
  • 01 JUL 14:58Z
    SyntaxHighlight stored XSS via unsanitized 'linelinks' attribute
    cvelistv5