Vulnerability Intelligence Report
Semantic MediaWiki vulnerable to stored XSS through wikitext via improper use of non-reserved data attributes
CVE-2025-61682
Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Versions starting in 3.1.0 and prior to 7.0.0 insert the unsanitized value of a data attribute into the DOM as HTML, allowing for stored XSS through wikitext. Version 7.0.0 patches the issue.
Cross-Site Scripting (XSS)
No Active Exploit Signals
CVSS Base Score
8.6
HIGH
Exploitability:3.9
Impact Score:4.8
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-79 ↗CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| SemanticMediaWiki | SemanticMediaWiki | >= 3.1.0, < 7.0.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Vulnerability Class
Cross-Site Scripting (XSS)
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2025-09-29T20:25:16 |
| Published | 2026-09-18T16:09:06 |
| Last Updated | 2026-09-18T17:23:49 |
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