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Redirection For Contact Form 7 - Security Vulnerability (CVE-2021-24279)

CVE-2021-24279

Vulnerability CVE-2021-24279 PLUGIN redirection-for-contact-form-7 MEDIUM

In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, low level users, such as subscribers, could use the import_from_debug AJAX action to install any plugin from the WordPress repository.

CVE-2021-24279

MEDIUM CVSS 6.5 Published 2021-05-14 Updated 2026-06-17
AI Risk Elevated (56/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P3 Priority
Severity Band MEDIUM
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Affected Components 1
Reference Links 2
AI Risk Engine Elevated (56/100)
Exploitability Medium
Active Exploitation No strong signal
Published Exploit Status No public exploit references

Threat Timeline

  1. 2021-05-14 CVE published and first recorded in the threat feed.
  2. 2026-06-17 Record updated with latest vulnerability metadata.
  3. 2026-04-12 AI technical context refreshed for mitigation and impact guidance.
  4. Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 162 days ago

AI enriched 162 days ago (2026-04-12 03:04 UTC)

Technical Summary

In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, low level users, such as subscribers, could use the import_from_debug AJAX action to install any plugin from the WordPress repository.

Potential Impact

Severity is MEDIUM (CVSS 6.5). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as Medium based on severity and technical exposure profile.

Primary risk drivers: severity and technical exposure profile

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 56/100 (Elevated, Medium) with priority P3 Priority. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Related Vulnerabilities

Browse All Threats

Newest linked vulnerabilities to keep visitors exploring adjacent CVE coverage.

Redirection for Contact Form 7 - Security Vulnerability (CVE-2026-80439) CVE-2026-80439 Published 2026-09-06 Redirection for Contact Form 7 - Cross-Site Scripting (XSS) (CVE-2026-23970) CVE-2026-23970 Published 2026-06-15 Redirection for Contact Form 7 - Security Vulnerability (CVE-2025-14800) CVE-2025-14800 Published 2025-12-21 Redirection for Contact Form 7 - Cross-Site Scripting (XSS) (CVE-2025-9562) CVE-2025-9562 Published 2025-10-18 Redirection for Contact Form 7 - Arbitrary File Upload (CVE-2025-8289) CVE-2025-8289 Published 2025-08-20 Redirection for Contact Form 7 - Remote Code Execution (CVE-2025-8145) CVE-2025-8145 Published 2025-08-20

References

What to do about this

Patch on your next cycle Worth fixing, but not ahead of other work.

Fix it

Update Redirection For Contact Form 7 to 2.3.4 or later.

That is the complete fix. Everything below is what protects you in the meantime.

No Hack Halt control meaningfully contains this one — updating is the remedy. We would rather say so than sell you something that will not help.

Start free

Not sure if you are affected?

Scan your site to see whether it runs Redirection For Contact Form 7, and at which version.

Free, no installation, no account. It reads what your site already publishes, then tells you which plugins carry known vulnerabilities and what to do about each one.

Scan my site free See what Hack Halt does

Am I affected by this vulnerability?

You are affected if your site runs Redirection For Contact Form 7. Versions below 2.3.4 are vulnerable; that release and later are not.

How do I fix it?

Update Redirection For Contact Form 7 to version 2.3.4 or later. That is the complete fix.

WordPress security that blocks attacks before they land.

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