CVE-2022-29039Network attack vector

Stored XSS via unescaped Base64 parameter metadata

Published Apr 12, 2022 · Updated Aug 3, 2024

Stored XSS in Jenkins Gerrit Trigger Plugin 2.35.2 and earlier allows remote authenticated users to execute script in a viewer's browser. The Base64 Encoded String parameter renderer inserts attacker-controlled parameter names and descriptions into parameter-listing views without HTML escaping. Exploitation requires Item/Configure permission, a page that lists the parameter, and that page to lack Jenkins core's XSS hardening.

CVSS severity5.4
Medium
EPSS probability0.83%
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 Gerrit Trigger Plugin 2.35.2 and earlier allows remote authenticated users to execute script in a viewer's browser. The Base64 Encoded String parameter renderer inserts attacker-controlled parameter names and descriptions into parameter-listing views without HTML escaping. Exploitation requires Item/Configure permission, a page that lists the parameter, and that page to lack Jenkins core's XSS hardening.

The record

CVE
CVE-2022-29039
Published
Apr 12, 2022
Updated
Aug 3, 2024
Vendor
Jenkins Project
Product
Gerrit Trigger
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 12, 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 <=2.35.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · Gerrit Triggerversion=unspecified <=2.35.2

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')
T1059.007Command and Scripting Interpreter: JavaScript/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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