CVE-2026-77607CWE-79cross-site-scripting

CVE-2026-77607

Medium · published September 18, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
19.7
In the wild
Unconfirmed
What it is

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, `sep` was inserted verbatim into HTML cell joins. This made it possible to inject HTML through the separator value. Version 7.2.0 fixes the issue.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00283 · 19.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-18T21:17Z
References (2)
https://github.com/SemanticMediaWiki/SemanticMediaWiki/releases/tag/7.2.0 · [email protected]https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-7xv3-gf2g-498h · [email protected]
EPSS history
Timeline
  • 20 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 18 SEP 16:51Z
    Semantic MediaWiki affected by Special:Ask table `sep` parameter reflected XSS
    cvelistv5