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MantisBT 1.0.0 < 2.28.2 Dynamic Custom Textarea Field Reflected XSS (GHSA-j7v9-f46r-2rp4)

medium Nessus Plugin ID 315207

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Synopsis

The remote host is affected by a cross-site scripting vulnerability.

Description

The version of MantisBT installed on the remote host is 1.0.0 or later but prior to 2.28.2. It is, therefore, affected by a vulnerability:

 - MantisBT is Vulnerable to Reflected XSS in Rendering Dynamic Custom Textarea Field. (CVE-2026-41897)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to MantisBT version 2.28.2 or later.

See Also

http://www.nessus.org/u?e5adac9a

Plugin Details

Severity: Medium

ID: 315207

File Name: mantis_CVE-2026-41897.nasl

Version: 1.3

Type: Remote

Published: 5/18/2026

Updated: 6/2/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2026-41897

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:mantisbt:mantisbt

Required KB Items: installed_sw/MantisBT

Exploit Ease: No known exploits are available

Patch Publication Date: 5/9/2026

Vulnerability Publication Date: 5/9/2026

Reference Information

CVE: CVE-2026-41897

IAVB: 2026-B-0122