CVE-2020-25814

Published: 27 September 2020

In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, XSS related to jQuery can occur. The attacker creates a message with [javascript:payload xss] and turns it into a jQuery object with mw.message().parse(). The expected result is that the jQuery object does not contain an <a> tag (or it does not have a href attribute, or it's empty, etc.). The actual result is that the object contains an <a href ="javascript... that executes when clicked.

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)
	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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