Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mediawiki | Mediawiki | 1.40.0 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://fluidattacks.com/advisories/blondie/ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/11/msg00027.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]
- https://www.debian.org/security/2023/dsa-5520Third Party Advisory
- https://www.mediawiki.org/wiki/MediaWiki/Product
- https://fluidattacks.com/advisories/blondie/ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/11/msg00027.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]
- https://www.debian.org/security/2023/dsa-5520Third Party Advisory
- https://www.mediawiki.org/wiki/MediaWiki/Product
FAQ
What is CVE-2023-3550?
CVE-2023-3550 is a vulnerability with a CVSS score of 7.3 (HIGH). 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 ...
How severe is CVE-2023-3550?
CVE-2023-3550 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-3550?
Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki, Debian Debian Linux.