---
cve: "CVE-2026-100708"
severity: "HIGH"
cvss: 7.1
epss: "0.1%"
vendor: "froxlor"
kev: false
exploited: false
published: "2026-09-26 14:16:56"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-10T06:13:10+02:00"
---

# CVE-2026-100708

> 7.1 HIGH · 🧪 PoC

## Beschreibung

Froxlor before 2.3.13 returns the ssl_key_file column — which stores the raw PEM TLS private-key content — verbatim in the JSON responses of the Certificates.get and Certificates.listing API commands, because the results of the underlying domain_ssl_settings queries are passed through ApiCommand::response() without any field stripping or allowlist. A low-privileged authenticated customer API caller can retrieve the private keys of their own domains' certificates, including Let's Encrypt keys that Froxlor generates server-side and stores root-only (0600) and to which the customer otherwise has no filesystem access; reseller and customers_see_all admin accounts can dump the private keys of other principals through the same sink. Disclosed keys enable domain impersonation, passive decryption of captured TLS traffic, and active machine-in-the-middle attacks.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-09-28 14:49:50
- CNA-CVSS: **7.1** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

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

- 9051a8c3222c2d1338738a3d2b1fa0f7e0be110a (Commit)

## BSI-Hinweise (deutsch)

- [Froxlor: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-3200) — _BSI-Einstufung: hoch_
  Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Froxlor ausnutzen, um Administratorrechte zu erlangen, um Daten zu manipulieren oder offenzulegen, sowie um Sicherheitsmechanismen zu umgehen.

## Referenzen

- <https://github.com/froxlor/froxlor/security/advisories/GHSA-6q2v-jjq5-m2c8>
- <https://www.vulncheck.com/advisories/froxlor-before-2.3.13-private-key-disclosure-via-certificates-api>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-100708/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_