---
cve: "CVE-2021-4434"
severity: "CRITICAL"
cvss: 10.0
epss: "1.9%"
vendor: "warfareplugins"
kev: false
exploited: false
published: "2024-01-17 09:15:25"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-21T10:41:46+02:00"
---

# CVE-2021-4434

> 10.0 CRITICAL · 🧪 PoC

## Beschreibung

The Social Warfare plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 3.5.2 via the 'swp_url' parameter. This allows attackers to execute code on the server.

## CNA-Record (Kanon, cvelistV5)

- CNA: **Wordfence**
- State: PUBLISHED
- Stand: 2026-04-08 17:10:45
- CNA-CVSS: **10.0** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Schwachstellen-Klasse

- **CWE-94** — Improper Control of Generation of Code ('Code Injection')
  The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

## Angriffsmuster (CAPEC)

- [CAPEC-35 — Leverage Executable Code in Non-Executable Files](https://capec.mitre.org/data/definitions/35.html) _(Severity: Very High)_
- [CAPEC-77 — Manipulating User-Controlled Variables](https://capec.mitre.org/data/definitions/77.html) _(Severity: Very High)_
- [CAPEC-242 — Code Injection](https://capec.mitre.org/data/definitions/242.html) _(Severity: High)_

## ATT&CK-Techniken

- [T1027.006 — Obfuscated Files or Information: HTML Smuggling](https://attack.mitre.org/techniques/T1027/006/)
- [T1027.009 — Obfuscated Files or Information: Embedded Payloads](https://attack.mitre.org/techniques/T1027/009/)
- [T1564.009 — Hide Artifacts: Resource Forking](https://attack.mitre.org/techniques/T1564/009/)

## Referenzen

- <https://www.wordfence.com/threat-intel/vulnerabilities/id/98cf2a10-cc53-4479-87d1-71489f6a8c51?source=cve>
- <https://packetstormsecurity.com/files/163680/WordPress-Social-Warfare-3.5.2-Remote-Code-Execution.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2021-4434/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_