CVE-2025-30196Network attack vector

Stored XSS via unrestricted workspace link schemes

Published Mar 19, 2025 · Updated Mar 19, 2025

Stored XSS in Jenkins AnchorChain Plugin 1.0 allows remote authenticated users to execute script through crafted workspace links. The post-build step reads a selected workspace text file and creates sidebar links without restricting URL schemes, so javascript: values remain executable. An attacker must control the configured input file, and another user must follow the stored link for script to run in the Jenkins origin.

CVSS severity8.0
High
EPSS probability0.30%
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 AnchorChain Plugin 1.0 allows remote authenticated users to execute script through crafted workspace links. The post-build step reads a selected workspace text file and creates sidebar links without restricting URL schemes, so javascript: values remain executable. An attacker must control the configured input file, and another user must follow the stored link for script to run in the Jenkins origin.

The record

CVE
CVE-2025-30196
Published
Mar 19, 2025
Updated
Mar 19, 2025
Vendor
Jenkins Project
Product
AnchorChain Plugin
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 19, 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=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · AnchorChain Pluginversion=1.0

Published CVSS scores

6.5CISA ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
8.0GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1203Exploitation for Client Execution

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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