---
cve: "CVE-2026-34754"
severity: "MEDIUM"
cvss: 4.3
epss: "25%"
vendor: "mantisbt"
kev: false
exploited: false
published: "2026-05-20 00:16:34"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T08:30:21+02:00"
---

# CVE-2026-34754

> 4.3 MEDIUM · 🧪 PoC

## Beschreibung

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior allow an authenticated user to upload attachments to private Issues they are not authorized to access. This issue has been fixed in version 2.28.2.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- b262b4d2835b81394d75356dead66e52a6275206 (Commit)

## Referenzen

- <https://github.com/mantisbt/mantisbt/security/advisories/GHSA-h4x5-gvx6-3rwc>
- <https://github.com/mantisbt/mantisbt/commit/b262b4d2835b81394d75356dead66e52a6275206>
- <https://mantisbt.org/bugs/view.php?id=36976>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-34754) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_