MantisBT 2.23.0 < 2.28.2 Private Bugnote Attachment Content Leak (GHSA-pw5x-2mf9-3xc8)

high Nessus Plugin ID 315203

Synopsis

The remote host is affected by an information disclosure vulnerability.

Description

The version of MantisBT installed on the remote host is 2.23.0 or later but prior to 2.28.2. It is, therefore, affected by a vulnerability:

- MantisBT has a Private Bugnote Attachment Content Leak via REST API. (CVE-2026-42071)

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?bf06948d

Plugin Details

Severity: High

ID: 315203

File Name: mantis_CVE-2026-42071.nasl

Version: 1.1

Type: Remote

Family: CGI abuses

Published: 5/18/2026

Updated: 5/18/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

CVSS Score Source: CVE-2026-42071

CVSS v3

Risk Factor: High

Base Score: 7.5

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

CVSS v4

Risk Factor: High

Base Score: 7.2

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

Vulnerability Information

CPE: cpe:/a:mantisbt:mantisbt

Required KB Items: installed_sw/MantisBT

Patch Publication Date: 5/9/2026

Vulnerability Publication Date: 5/9/2026

Reference Information

CVE: CVE-2026-42071

IAVB: 2026-B-0122