CVE-2025-30196: anchorchain XSS — Fix

Description

Jenkins AnchorChain Plugin 1.0 does not limit URL schemes for links it creates based on workspace content, allowing the `javascript:` scheme, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control the input file for the Anchor Chain post-build step.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
jenkins	anchorchain	All

References

Advisories & Patches

https://www.jenkins.io/security/advisory/2025-03-19/#SECURITY-3529

Frequently Asked Questions

What is CVE-2025-30196? +

Jenkins AnchorChain Plugin 1.0 does not limit URL schemes for links it creates based on workspace content, allowing the `javascript:` scheme, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control the input file for the Anchor Chain post-build step. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-30196? +

CVE-2025-30196 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-30196? +

CVE-2025-30196 affects products from jenkins, specifically: anchorchain. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-30196? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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