CVE-2026-100243
Medium
Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiSEO Extension allows Stored XSS. This issue affects Mediawiki - WikiSEO Extension: from * before 1.46.1, 1.45.5, 1.43.10.
SeverityMedium
CVSS6.1
Exploit probability—
ProductMediawiki - WikiSEO Extension
PublishedSep 29, 2026
First seenSep 29, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- Wikimedia Foundation Mediawiki - WikiSEO Extension1.46.1, 1.45.5, 1.43.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Wikimedia Foundation Mediawiki - WikiSEO Extension | v < 1.46.1, 1.45.5, 1.43.10 | 1.46.1, 1.45.5, 1.43.10 |
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