CVE-2023-35146Public exploitNetwork attack vector

Stored XSS via unescaped workflow job names

Published Jun 14, 2023 · Updated Dec 31, 2024

Stored XSS in Jenkins Template Workflows Plugin 41.v32d86a_313b_4a and earlier allows remote authenticated users to run scripts in a victim's browser. The TemplatesWorkflowJob#refresh AJAX handler concatenates an unescaped job name into an HTML response that client code assigns to innerHTML. Exploitation requires job-creation permission and a victim to open the crafted Template Workflow Job configuration page; targeting an administrator can lead to code execution on the controller.

CVSS severity5.4
Medium
EPSS probability0.75%
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 Template Workflows Plugin 41.v32d86a_313b_4a and earlier allows remote authenticated users to run scripts in a victim's browser. The TemplatesWorkflowJob#refresh AJAX handler concatenates an unescaped job name into an HTML response that client code assigns to innerHTML. Exploitation requires job-creation permission and a victim to open the crafted Template Workflow Job configuration page; targeting an administrator can lead to code execution on the controller.

The record

CVE
CVE-2023-35146
Published
Jun 14, 2023
Updated
Dec 31, 2024
Vendor
Jenkins Project
Product
Jenkins Template Workflows Plugin
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 31, 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=0 <=41.v32d86a_313b_4a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · Jenkins Template Workflows Pluginversion=0 <=41.v32d86a_313b_4a

Published CVSS scores

5.4NIST National Vulnerability DatabaseCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

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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