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CVE-2021-4434

29
FAUCET Score

CVE-2021-4434 describes a critical Remote Code Execution (RCE) vulnerability in the Social Warfare plugin for WordPress, affecting versions up to and including 3.5.2. This flaw allows unauthenticated attackers to execute arbitrary code on the server by manipulating the 'swp_url' parameter. With a CVSS score of 9.8, this vulnerability is highly severe, requiring no user interaction and having a low attack complexity. While there is no evidence of active exploitation, public exploit code, or significant community discussion, its critical nature warrants immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.5.3CPE matchmatch criteria
cpe:2.3:a:warfareplugins:social_warfare:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

10.0CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.92%
Probability of exploitation in next 30 days
EPSS Percentile
77.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0192 is in the 66th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/163680/WordPress-Social-Warfare-3.5.2-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
wordfence.com / threat-intel/vulnerabilities/id/98cf2a10-cc53-4479-87d1-71489f6a8c51
Third Party Advisory