CVE-2020-13959

Published: 10 March 2021

The default error page for VelocityView in Apache Velocity Tools prior to 3.1 reflects back the vm file that was entered as part of the URL. An attacker can set an XSS payload file as this vm file in the URL which results in this payload being executed. XSS vulnerabilities allow attackers to execute arbitrary JavaScript in the context of the attacked website and the attacked user. This can be abused to steal session cookies, perform requests in the name of the victim or for phishing attacks.

Priority

Cvss 3 Severity Score

6.1

Score breakdown

Status

Package	Release	Status
velocity-tools Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Released (2.0-4ubuntu0.1~esm1) Available with Ubuntu Pro
	bionic	Released (2.0-7ubuntu0.18.04.1~esm1) Available with Ubuntu Pro
	focal	Released (2.0-7ubuntu0.20.04.1)
	groovy	Ignored (end of life)
	hirsute	Ignored (end of life)
	impish	Ignored (end of life)
	jammy	Not vulnerable (2.0-8)
	kinetic	Ignored (end of life, was needs-triage)
	lunar	Not vulnerable (2.0-8)
	upstream	Needs triage

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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