MantisBT < 2.28.2 Multiple Vulnerabilities

high Nessus Plugin ID 315202

Synopsis

The remote host is affected by multiple vulnerabilities.

Description

The version of MantisBT installed on the remote host is prior to 2.28.2. It is, therefore, affected by multiple vulnerabilities:

- MantisBT is vulnerable to Privilege Escalation from Manager to Administrator. (CVE-2026-34390)

- MantisBT is vulnerable to Authorization Bypass in Bugnote Editing via Issue Update API. (CVE-2026-42070)

- MantisBT is vulnerable to Stored XSS in Custom Field Textarea Values. (CVE-2026-39960)

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

Solution

Upgrade to MantisBT version 2.28.2 or later.

Plugin Details

Severity: High

ID: 315202

File Name: mantis_2_28_2_multiple.nasl

Version: 1.1

Type: Remote

Family: CGI abuses : XSS

Published: 5/18/2026

Updated: 5/18/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

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

CVSS Score Source: CVE-2026-34390

CVSS v3

Risk Factor: Critical

Base Score: 9.8

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

CVSS v4

Risk Factor: High

Base Score: 8.6

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

CVSS Score Source: CVE-2026-34463

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-2026-34390, CVE-2026-34463, CVE-2026-34744, CVE-2026-34754, CVE-2026-34970, CVE-2026-39960, CVE-2026-40597, CVE-2026-40598, CVE-2026-42070, CVE-2026-44657

IAVB: 2026-B-0122

Detections

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