CVE-2023-3550
Stored XSS leads to privilege escalation in MediaWiki v1.40.0
- State
- Published
- Severity
- 7.3 High
- Published
- Sep 25, 2023
- Updated
- Feb 13, 2025
- Reserved
- Jul 8, 2023
Description
Mediawiki v1.40.0 does not validate namespaces used in XML files.
Therefore, if the instance administrator allows XML file uploads,
a remote attacker with a low-privileged user account can use this
exploit to become an administrator by sending a malicious link to
the instance administrator.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N | Fluid Attacks |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
MediaWikiMediaWiki |
|
References
- https://fluidattacks.com/advisories/blondie/
- https://www.mediawiki.org/wiki/MediaWiki/
- https://www.debian.org/security/2023/dsa-5520
- https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/
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