CVE-2022-43409Network attack vector

Stored XSS via unencoded build-log URLs

Published Oct 19, 2022 · Updated May 8, 2025

Stored XSS in Jenkins Pipeline: Supporting APIs Plugin 838.va_3a_087b_4055b and earlier allows remote authenticated users to execute scripts. The plugin writes attacker-controlled POST-link URLs into build-log hyperlinks without sanitizing or properly encoding them before browser rendering. Pipeline-creation access and a viewer clicking the crafted hyperlink are required; the script can read or alter data available to that browser session.

CVSS severity5.4
Medium
EPSS probability0.70%
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 Pipeline: Supporting APIs Plugin 838.va_3a_087b_4055b and earlier allows remote authenticated users to execute scripts. The plugin writes attacker-controlled POST-link URLs into build-log hyperlinks without sanitizing or properly encoding them before browser rendering. Pipeline-creation access and a viewer clicking the crafted hyperlink are required; the script can read or alter data available to that browser session.

The record

CVE
CVE-2022-43409
Published
Oct 19, 2022
Updated
May 8, 2025
Vendor
Jenkins Project
Product
Pipeline: Supporting APIs Plugin
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 19, 2022CVE publishedPublication date reported by the CVE source.
  2. May 8, 2025Record 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 <=838.va_3a_087b_4055b

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · Pipeline: Supporting APIs Pluginversion=unspecified <=838.va_3a_087b_4055b

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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')
T1204.001Malicious Link

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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