title: DOM-based XSS in GoCD
description: GoCD is a continuous delivery server. GoCD versions 19.11.0 through 21.4.0 (inclusive) are vulnerable to a Document Object Model (DOM)-based cross-site scripting attack via a pipeline run's Stage Details > Graphs tab. It is possible for a malicious script on a attacker-hosted site to execute script that will run within the user's browser context and GoCD session via abuse of a messaging channel used for communication between with the parent page and the stage details graph's iframe. This could allow an attacker to steal a GoCD user's session cookies and/or execute malicious code in the user's context. This issue is fixed in GoCD 22.1.0. There are currently no known workarounds.
problem types: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
affected:
{
product: gocd
vendor: gocd
versions:
status: affected, version: >= 19.11.0, < 22.1.0
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 4.3
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: LOW
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
version: 3.1
]