---
cve: "CVE-2026-44657"
severity: "HIGH"
cvss: 7.5
epss: "35%"
vendor: "mantisbt"
kev: false
exploited: false
published: "2026-05-28 21:16:31"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T11:49:01+02:00"
---

# CVE-2026-44657

> 7.5 HIGH · 🧪 PoC

## Beschreibung

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Prior to 2.28.2, using show_inline=1 parameter and a valid file_show_inline_token CSRF token on file_download.php, an attacker can execute code by uploading a crafted XHTML attachment referencing a JavaScript attachment. This vulnerability is fixed in 2.28.2.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 26647b2e68ba30b9d7987d4e03d7a16416684bc2 (Commit)

## Referenzen

- <https://github.com/mantisbt/mantisbt/security/advisories/GHSA-p6fr-rxq7-xcg8>
- <https://github.com/mantisbt/mantisbt/security/advisories/GHSA-9c3j-xm6v-j7j3>
- <https://github.com/mantisbt/mantisbt/commit/26647b2e68ba30b9d7987d4e03d7a16416684bc2>
- <https://mantisbt.org/bugs/view.php?id=37020>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-44657) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_