CVE-2020-25812

Published: 27 September 2020

An issue was discovered in MediaWiki 1.34.x before 1.34.4. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier. This is vulnerable to a mild XSS if one of those messages is changed to include raw HTML.

Priority

Cvss 3 Severity Score

6.1

Score breakdown

Status

Package	Release	Status
mediawiki Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	groovy	Not vulnerable (1:1.35.0-1)
	hirsute	Not vulnerable (1:1.35.0-1)
	impish	Not vulnerable (1:1.35.0-1)
	jammy	Not vulnerable (1:1.35.0-1)
	kinetic	Not vulnerable (1:1.35.0-1)
	lunar	Not vulnerable (1:1.35.0-1)
	mantic	Not vulnerable (1:1.35.0-1)
	noble	Not vulnerable (1:1.35.0-1)
	trusty	Does not exist
	upstream	Released (1:1.35.0-1)
	xenial	Does not exist

Severity score breakdown

Parameter	Value
Base score	6.1
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Changed
Confidentiality	Low
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

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