CVE-2021-4434

CRITICALNVD 10.010.0—Elevated

10.0

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.

CVSS v3: 10.0
EG Score: 10.0(medium)
EPSS: 92.2%
KEV: Not listed

Published

January 17, 2024

Last Modified

April 8, 2026

References (4)

security@wordfencehttps://packetstormsecurity.com/files/163680/WordPress-Social-Warfare-3.5.2-Remote-Code-Execution.html
security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/98cf2a10-cc53-4479-87d1-71489f6a8c51?source=cve
af854a3a-2127-422b-91ae-364da2661108https://packetstormsecurity.com/files/163680/WordPress-Social-Warfare-3.5.2-Remote-Code-Execution.html
af854a3a-2127-422b-91ae-364da2661108https://www.wordfence.com/threat-intel/vulnerabilities/id/98cf2a10-cc53-4479-87d1-71489f6a8c51?source=cve

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-94Improper Control of Generation of Code (Code Injection)

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2021-4434?

CVE-2021-4434 is a critical vulnerability published on January 17, 2024. 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.

When was CVE-2021-4434 disclosed?

CVE-2021-4434 was first published in the National Vulnerability Database on January 17, 2024, with the most recent update on April 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-4434 actively exploited?

CVE-2021-4434 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-4434?

CVE-2021-4434 has a CVSS v3 base score of 10.0 (NVD).

How do I remediate CVE-2021-4434?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-4434, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-4434

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-4434?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (4)

Frequently asked(5)

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