Vulnerability Monitor

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CVE-2023-3550

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.

Published

2023-09-25T16:15:14.347

Last Modified

2025-02-13T17:16:57.407

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.3 (HIGH)

Weaknesses

Type: Primary
CWE-79
Type: Secondary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mediawiki	mediawiki	1.40.0	Yes
Operating System	debian	debian_linux	10.0	Yes
Operating System	debian	debian_linux	11.0	Yes

References

https://fluidattacks.com/advisories/blondie/ Exploit, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html Mailing List, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/[email protected]/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/ ([email protected])
https://www.debian.org/security/2023/dsa-5520 Third Party Advisory ([email protected])
https://www.mediawiki.org/wiki/MediaWiki/ Product ([email protected])
https://fluidattacks.com/advisories/blondie/ Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/ (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2023/dsa-5520 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mediawiki.org/wiki/MediaWiki/ Product (af854a3a-2127-422b-91ae-364da2661108)