Detections
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MantisBT 2.26.1 < 2.28.2 Private Issue Monitoring Authorization Bypass (GHSA-ggw7-9675-6v4v)

medium Nessus Plugin ID 315205

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Synopsis

The remote host is affected by an authorization bypass vulnerability.

Description

The version of MantisBT installed on the remote host is 2.26.1 or later but prior to 2.28.2. It is, therefore, affected by a vulnerability:

 - MantisBT has an authorization bypass in private issue monitoring. (CVE-2026-34579)

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?69fb9b33

Plugin Details

Severity: Medium

ID: 315205

File Name: mantis_CVE-2026-34579.nasl

Version: 1.2

Type: Remote

Family: CGI abuses

Published: 5/18/2026

Updated: 5/19/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-34579

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:N/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-2026-34579

IAVB: 2026-B-0122