---
cve: "CVE-2026-100709"
severity: "HIGH"
cvss: 7.7
epss: "0.3%"
vendor: "froxlor"
kev: false
exploited: false
published: "2026-09-26 14:16:56"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-29T04:47:40+02:00"
---

# CVE-2026-100709

> 7.7 HIGH · 🧪 PoC

## Beschreibung

Froxlor through 2.3.10 stores only a numeric user ID in remembered-2FA tokens (panel_2fa_tokens) without recording the account namespace, and the remembered-token lookup during login is not constrained to the customer or administrator account type. Because customer and administrator IDs are allocated from separate namespaces, a remembered-2FA token legitimately issued to a customer with a given ID also matches an administrator with the same ID. An attacker who controls a customer account with a colliding ID, holds a valid remembered-2FA cookie for it, and already knows the target administrator's password can bypass the administrator's TOTP second factor and obtain an authenticated administrator session. This is a second-factor bypass only; it does not defeat password authentication. Fixed in 2.3.12.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-09-26 23:08:21
- CNA-CVSS: **7.7** (`CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/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 | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 143b6ee634a4b9c237437b4b1206c7b733b86d95 (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-9fq7-9w8p-c3qh>
- <https://www.vulncheck.com/advisories/froxlor-before-2.3.12-2fa-bypass-via-namespace-confusion>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-100709) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_