# CVE-2021-4434: Social Warfare <= 3.5.2 - Remote Code Execution

> Attackers can execute arbitrary code on the server via the swp_url parameter in the Social Warfare WordPress plugin.

- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Jan 2024
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-6gjp-6pv7-w558

## What is CVE-2021-4434?

CVE-2021-4434 is a critical code injection vulnerability in warfareplugins Social Sharing Plugin – Social Warfare, published on 17 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2021-4434?

It affects 1 product.


Products: Warfareplugins Social Warfare.

## How do I fix CVE-2021-4434?

No fix has been published for CVE-2021-4434 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-4434 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-4434 exists.

## Other vulnerabilities in warfareplugins Social Sharing Plugin – Social Warfare

- [CVE-2019-9978](https://insights.sbomify.com/CVE-2019-9978/): WordPress Social Warfare Plugin Cross-Site Scripting (XSS) (medium 6.1, exploited in the wild)
- [CVE-2023-4842](https://insights.sbomify.com/CVE-2023-4842/): Cross-site scripting in Social Sharing Plugin – Social Warfare (medium 6.4)
- [CVE-2023-0402](https://insights.sbomify.com/CVE-2023-0402/): Social Warfare <= 4.3.0 - Missing Authorization (medium 5.4)
- [CVE-2023-0403](https://insights.sbomify.com/CVE-2023-0403/): Social Warfare <= 4.3.1 - Cross-Site Request Forgery (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-4434 and fix it if it is affected.

What it is: CVE-2021-4434 is a critical code injection vulnerability in warfareplugins Social Sharing Plugin – Social Warfare, published on 17 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-4434 exists.

Affected product: warfareplugins Social Sharing Plugin – Social Warfare. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-4434/ (Markdown: https://insights.sbomify.com/CVE-2021-4434/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-4434
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-4434
- OSV: https://osv.dev/vulnerability/CVE-2021-4434

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-4434/
Summaries are generated and may contain mistakes; the official description above is the record.