CVE-2023-49802

Name: CVE-2023-49802
Creator: NVD / NIST
Published: 2023-12-11T22:15:06.73+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.66%

Last modified Jun 17, 2026

CVE-2023-49802 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. The LinkedCustomFields plugin for MantisBT allows users to link values between two custom fields, creating linked drop-downs. Prior to version 2.0.1, cross-site scripting in the MantisBT LinkedCustomFields plugin allows Javascript execution, when a crafted Custom Field is linked via the plugin and displayed when reporting a new Issue or editing an existing one. EPSS estimates a 0.66% chance of exploitation in the next 30 days.

Description

The LinkedCustomFields plugin for MantisBT allows users to link values between two custom fields, creating linked drop-downs. Prior to version 2.0.1, cross-site scripting in the MantisBT LinkedCustomFields plugin allows Javascript execution, when a crafted Custom Field is linked via the plugin and displayed when reporting a new Issue or editing an existing one. This issue is fixed in version 2.0.1. As a workaround, one may utilize MantisBT's default Content Security Policy, which blocks script execution.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.66%

46.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Mantisbt	Linked Custom Fields	< 2.0.1

References

https://github.com/mantisbt-plugins/LinkedCustomFields/commit/30e5ae751e40d7ae18bfd794fd48671477b3d286Patch
https://github.com/mantisbt-plugins/LinkedCustomFields/issues/10Issue Tracking, Patch
https://github.com/mantisbt-plugins/LinkedCustomFields/pull/11Issue Tracking
https://github.com/mantisbt-plugins/LinkedCustomFields/security/advisories/GHSA-2f37-9xpx-5hhwVendor Advisory
https://github.com/mantisbt-plugins/LinkedCustomFields/commit/30e5ae751e40d7ae18bfd794fd48671477b3d286Patch
https://github.com/mantisbt-plugins/LinkedCustomFields/issues/10Issue Tracking, Patch
https://github.com/mantisbt-plugins/LinkedCustomFields/pull/11Issue Tracking
https://github.com/mantisbt-plugins/LinkedCustomFields/security/advisories/GHSA-2f37-9xpx-5hhwVendor Advisory

Timeline

Published: Dec 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-49802?

How severe is CVE-2023-49802?

CVE-2023-49802 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.

How do I fix CVE-2023-49802?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-49802?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST