CVE-2023-3550

Published: 25 September 2023

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.

Priority

Cvss 3 Severity Score

7.3

Score breakdown

Status

Package	Release	Status
mediawiki Launchpad, Ubuntu, Debian	trusty	Ignored (end of standard support)
	xenial	Ignored (end of standard support)
	bionic	Needs triage
	focal	Needs triage
	jammy	Needs triage
	lunar	Needs triage
	upstream	Needs triage
	mantic	Needs triage

Severity score breakdown

Parameter	Value
Base score	7.3
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

References

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