PT-2021-14661 · Jenkins · Jenkins Repository Connector Plugin+1

S0Nnguy3N · CVE-2021-21618 · Published 2021-02-24 · Updated 2023-11-03

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Jenkins Repository Connector Plugin versions 2.0.2 and earlier

Description The issue results in a stored cross-site scripting (XSS) vulnerability, which is exploitable by attackers with Item/Configure permission. This occurs because the plugin does not escape parameter names and descriptions for past builds.

Recommendations For versions 2.0.2 and earlier, update to version 2.0.3 or later, which escapes parameter names and descriptions when creating new parameters.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-21618

GHSA-HG2W-3C4J-JJWM

Affected Products

Jenkins

Jenkins Repository Connector Plugin

References · 9

• https://osv.dev/vulnerability/GHSA-hg2w-3c4j-jjwm · Vendor Advisory
• https://jenkins.io/security/advisory/2021-02-24/#SECURITY-2183 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21618 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21618 · Vendor Advisory
• https://github.com/jenkinsci/repository-connector-plugin · Note
• https://t.me/cvenotify/60418 · Telegram Post
• https://t.me/cvenotify/10444 · Telegram Post
• https://t.me/cvenotify/10626 · Telegram Post
• https://t.me/cibsecurity/24075 · Telegram Post