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CVE-2023-49802

18
FAUCET Score

CVE-2023-49802 is a cross-site scripting (XSS) vulnerability in the LinkedCustomFields plugin for MantisBT, affecting versions prior to 2.0.1. An attacker can execute arbitrary JavaScript by crafting a malicious custom field that is then linked and displayed when reporting or editing an issue. With a CVSS score of 6.1 (Medium), this vulnerability requires user interaction (UI:R) and could lead to limited confidentiality and integrity impacts (C:L, I:L). There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.0.1CPE matchmatch criteria
cpe:2.3:a:mantisbt:linked_custom_fields:*:*:*:*:*:mantisbt:*:*

CVSS Data

CVSS version used by this source: 3.1

6.7MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
1.2
Impact Score
5.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.66%
Probability of exploitation in next 30 days
EPSS Percentile
47.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0066 is in the 52nd percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / mantisbt-plugins/LinkedCustomFields/commit/30e5ae751e40d7ae18bfd794fd48671477b3d286
Patch
github.com / mantisbt-plugins/LinkedCustomFields/issues/10
Issue TrackingPatch
github.com / mantisbt-plugins/LinkedCustomFields/pull/11
Issue Tracking
github.com / mantisbt-plugins/LinkedCustomFields/security/advisories/GHSA-2f37-9xpx-5hhw
Vendor Advisory