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githubGitHub Advisory DatabaseGHSA-922H-X9QV-2274
HistoryMay 24, 2022 - 4:52 p.m.

Jenkins PegDown Formatter Plugin has Cross-site Scripting vulnerability

2022-05-2416:52:45
CWE-79
GitHub Advisory Database
github.com
10
jenkins
pegdown formatter plugin
cross-site scripting
xss
html
jenkins security
vulnerability
pegdown library

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.001

Percentile

22.0%

PegDown Formatter Plugin uses the PegDown library to implement support for rendering Markdown formatted descriptions in Jenkins. It advertises disabling of HTML to prevent cross-site scripting (XSS) as a feature.

PegDown Formatter Plugin does not prevent the use of javascript: scheme in URLs for links. This results in an XSS vulnerability exploitable by users able to configure entities with descriptions or similar properties that are rendered by the configured markup formatter.

As of publication of this advisory, there is no fix.

Affected configurations

Vulners
Node
org.jenkins-ci.pluginspegdown-formatterRange1.3
VendorProductVersionCPE
org.jenkins-ci.pluginspegdown-formatter*cpe:2.3:a:org.jenkins-ci.plugins:pegdown-formatter:*:*:*:*:*:*:*:*

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.001

Percentile

22.0%

Related for GHSA-922H-X9QV-2274