CVE-2026-100376
TemplateSandbox can be abused for XSS by asking another user to preview a page with a certain sandbox prefix
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - TemplateSandbox Extension allows Cross-Site Scripting (XSS). This issue affects Mediawiki - TemplateSandbox Extension: from * before 1.46.1, 1.45.5, 1.43.10.
| CWE | CWE-79 |
| Vendor | wikimedia foundation |
| Product | mediawiki - templatesandbox extension |
| Published | Sep 25, 2026 |
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Affected Versions
Wikimedia Foundation / Mediawiki - TemplateSandbox Extension
* < 1.46.1, 1.45.5, 1.43.10
References
Credits
cookmeplox