What’s Vulnerable › Vulnerabilities

CVE-2021-24280: Redirection for Contact Form 7 < 2.3.4 - Authenticated PHP Object Injection

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-05-14 · updated 2026-06-17
• Weakness: CWE-502

Description

In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, any authenticated user, such as a subscriber, could use the import_from_debug AJAX action to inject PHP objects.

Affected products

• Query Solutions Redirection for Contact Form 7: before 2.3.4 — fixed in 2.3.4

How to fix

Upgrade to a fixed version: Query Solutions Redirection for Contact Form 7 2.3.4. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/db4ba6b0-887e-4ec1-8935-ab21d369b329
• https://www.wordfence.com/blog/2021/04/severe-vulnerabilities-patched-in-redirection-for-contact-form-7-plugin/
• https://wpscan.com/vulnerability/db4ba6b0-887e-4ec1-8935-ab21d369b329
• https://www.wordfence.com/blog/2021/04/severe-vulnerabilities-patched-in-redirection-for-contact-form-7-plugin/

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