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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

Medium

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