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Stored XSS vulnerability in Jenkins Pipeline: Supporting APIs Plugin

High severity GitHub Reviewed Published Oct 19, 2022 to the GitHub Advisory Database • Updated Jan 4, 2024

Package

maven org.jenkins-ci.plugins.workflow:workflow-support (Maven)

Affected versions

< 839.v35e2736cfd5c

Patched versions

839.v35e2736cfd5c

Description

Pipeline: Supporting APIs Plugin provides a feature to add hyperlinks, that send POST requests when clicked, to build logs. These links are used by Pipeline: Input Step Plugin to allow users to proceed or abort the build, or by Pipeline: Job Plugin to allow users to forcibly terminate the build after aborting it.

Pipeline: Supporting APIs Plugin 838.va_3a_087b_4055b and earlier does not sanitize or properly encode URLs of these hyperlinks in build logs.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to create Pipelines.

Pipeline: Supporting APIs Plugin 839.v35e2736cfd5c properly encodes URLs of these hyperlinks in build logs.

References

Published by the National Vulnerability Database Oct 19, 2022
Published to the GitHub Advisory Database Oct 19, 2022
Reviewed Oct 19, 2022
Last updated Jan 4, 2024

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(87th percentile)

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Learn more on MITRE.

CVE ID

CVE-2022-43409

GHSA ID

GHSA-64r9-x74q-wxmh

Source code

Credits

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