CVE-2026-103046
WikifunctionsFragmentRenderer does unsafe string replacements on user-provided HTML
- State
- Published
- Severity
- 6.1 Medium
- Published
- Sep 29, 2026
- Updated
- Sep 30, 2026
- Reserved
- Sep 29, 2026
Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS.
This issue affects MediaWiki - WikiLambda extension: before 1.46.1.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.1 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')
Affected Products
| Product | Versions |
|---|---|
Mediawiki - WikiLambda ExtensionThe Wikimedia Foundation |
|
References
- https://phabricator.wikimedia.org/T428829issue-tracking
- https://gerrit.wikimedia.org/r/c/1307827mitigation
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