CVE-2022-27202Network attack vector

Stored script execution via unescaped parameter fields

Published Mar 15, 2022 · Updated Aug 3, 2024

Stored XSS in Jenkins Extended Choice Parameter Plugin 346.vd87693c5a_86c and earlier lets remote authenticated users run browser scripts. The plugin renders the configured value and description of Radio Buttons or Check Boxes parameters without escaping them. Exploitation requires Item/Configure permission and a viewer to open a page that displays the stored parameter, enabling script execution in that viewer's Jenkins session.

CVSS severity5.4
Medium
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Jenkins Extended Choice Parameter Plugin 346.vd87693c5a_86c and earlier lets remote authenticated users run browser scripts. The plugin renders the configured value and description of Radio Buttons or Check Boxes parameters without escaping them. Exploitation requires Item/Configure permission and a viewer to open a page that displays the stored parameter, enabling script execution in that viewer's Jenkins session.

The record

CVE
CVE-2022-27202
Published
Mar 15, 2022
Updated
Aug 3, 2024
Vendor
Jenkins Project
Product
Jenkins Extended Choice Parameter Plugin
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=346.vd87693c5a_86c

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · Jenkins Extended Choice Parameter Pluginversion=unspecified <=346.vd87693c5a_86c

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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