CVE-2026-100376
TemplateSandbox can be abused for XSS by asking another user to preview a page with a certain sandbox prefix
- State
- Published
- Severity
- 4.8 Medium
- Published
- Sep 25, 2026
- Updated
- Sep 26, 2026
- Reserved
- Sep 25, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L | wikimedia-foundation |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
Mediawiki - TemplateSandbox ExtensionWikimedia Foundation |
|
References
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