CVE-2023-3550

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.

References

https://www.mediawiki.org/wiki/MediaWiki/

https://www.debian.org/security/2023/dsa-5520

https://lists.fedoraproject.org/archives/list/[email protected]/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/

https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html

https://fluidattacks.com/advisories/blondie/

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3