---
cve: "CVE-2026-73699"
severity: "HIGH"
cvss: 8.6
epss: "0.5%"
vendor: "FileRun"
kev: false
exploited: false
published: "2026-09-10 17:17:06"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T22:44:40+02:00"
---

# CVE-2026-73699

> 8.6 HIGH

## Beschreibung

FileRun before 2026.3.0 contains a PHP object injection vulnerability that allows authenticated attackers to execute arbitrary code by exploiting incorrect options passed to unserialize() in the Perms::getPerms() method, where a positional array is used instead of the required named-key array to disable class instantiation. Attackers with database write access can inject a serialized gadget chain into the permissions table columns processed on every authenticated page load to write arbitrary files, such as PHP webshells, to web-accessible paths.

## CVSS-Vektor

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

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

## Referenzen

- <https://vulncheck.com/blog/filerun-delegated-admin-sql-to-object-injection-rce>
- <https://filerun.com/index.php/changelog?v=2026.3.0>
- <https://www.vulncheck.com/advisories/filerun-php-object-injection-via-perms-getperms>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-73699) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_