---
cve: "CVE-2026-42071"
severity: "HIGH"
cvss: 7.2
epss: "26%"
vendor: "mantisbt"
kev: false
exploited: false
published: "2026-05-28 21:16:30"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T11:54:43+02:00"
---

# CVE-2026-42071

> 7.2 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 029d9d203d9e4ae96b3e59d552fa7395cc1e5071 (Commit)

## Referenzen

- <https://github.com/mantisbt/mantisbt/security/advisories/GHSA-pw5x-2mf9-3xc8>
- <https://github.com/mantisbt/mantisbt/commit/029d9d203d9e4ae96b3e59d552fa7395cc1e5071>
- <https://mantisbt.org/bugs/view.php?id=27039>
- <https://mantisbt.org/bugs/view.php?id=36985>
- <https://mantisbt.org/bugs/view.php?id=37092>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-42071) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_