Vulnerabilities CVE-2026-42071

CVE-2026-42071

High

Open

TLP:CLEAR

MantisBT: Private Bugnote Attachment Content Leak via REST API

NVD CVE.org

Critical Infrastructure

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Description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. From 2.23.0 to 2.28.1, a missing authorization check in MantisBT's file visibility function allows any authenticated user (REPORTER+) to download attachments on private bugnotes they should not be able to access, via the REST API endpoint GET /api/rest/issues/{id}/files and SOAP API mc_issue_attachment_get endpoint. This vulnerability is fixed in 2.28.2.

Details

CVSS Score: 7.2
EPSS Score ⓘ: 0.26%

17.8th percentile
CVSS 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
Confidence: 90%
Published: May 28, 2026
Last Modified: May 28, 2026

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