How severe is CVE-2023-49802?

CVE-2023-49802 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2023-49802 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-49802?

CVE-2023-49802 affects Mantisbt Linked Custom Fields. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-49802?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-49802 published?

CVE-2023-49802 was published on 2023-12-11 and last updated on 2026-06-17.

CVE-2023-49802

CVE-2023-49802 is a medium-severity vulnerability in Mantisbt Linked Custom Fields with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mantisbt Linked Custom Fields
Published: 2023-12-11
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-49802?: 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.
How severe is CVE-2023-49802?: CVE-2023-49802 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2023-49802 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-49802?: CVE-2023-49802 affects Mantisbt Linked Custom Fields. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-49802?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-49802 published?: CVE-2023-49802 was published on 2023-12-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mantisbt:linked_custom_fields:*:*:*:*:*:mantisbt:*:*

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