CVE-2026-77608 json
Semantic MediaWiki has reflected XSS in `Special:SearchByProperty` (`property` and `value` parameters)
published 2026-09-18 51 d ago modified 2026-09-24 45 d ago also GHSA-59xw-qv23-j3rc , EUVD-2026-83173
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
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, when the `value` parameter was reflected back into rendered output and error messaging paths without enough output-context encoding. Version 7.2.0 fixes the issue.
Patch / fix
- packagist mediawiki/semantic-media-wiki 7.2.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 51 d ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | mediawiki/semantic-media-wiki | <7.2.0 |
7.2.0 |
Affected products
- SemanticMediaWiki SemanticMediaWiki
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
Sources
- CVE List CVE-2026-77608
- GitHub Advisory GHSA-59xw-qv23-j3rc
- NVD CVE-2026-77608
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