---
cve: "CVE-2026-46725"
severity: "CRITICAL"
cvss: 9.2
epss: "1.9%"
vendor: "TYPO3"
kev: false
exploited: false
published: "2026-05-19 10:16:25"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-26T17:24:24+01:00"
---

# CVE-2026-46725

> 9.2 CRITICAL

## Beschreibung

The extension passes an attacker-controlled cookie directly to PHP's unserialize() without safely processing the input. A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server. Exploitation requires the content element to be configured with "Persistent Mode: Static" in the plugin settings.

## CNA-Record (Kanon, cvelistV5)

- CNA: **TYPO3**
- State: PUBLISHED
- Stand: 2026-05-19 13:29:29
- CNA-CVSS: **9.2** (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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:N/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 | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-502** — Deserialization of Untrusted Data
  The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

## Angriffsmuster (CAPEC)

- [CAPEC-586 — Object Injection](https://capec.mitre.org/data/definitions/586.html) _(Severity: High)_

## BSI-Hinweise (deutsch)

- [TYPO3 Extensions: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-1585) — _BSI-Einstufung: hoch_
  Ein Angreifer kann mehrere Schwachstellen in TYPO3 Extensions ausnutzen, um beliebigen Programmcode auszuführen, um einen SQL-Injection Angriff durchzuführen, um Informationen offenzulegen, und um Sicherheitsvorkehrungen zu umgehen.

## Referenzen

- <https://typo3.org/security/advisory/typo3-ext-sa-2026-013>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-46725/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_