Redirection for Contact Form 7 < 2.3.4 - Unprotected AJAX Actions

published 2021-05-14 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11196

cvss: 6.3; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits: 0; none known

In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, any authenticated user, such as a subscriber, could use the various AJAX actions in the plugin to do a variety of things. For example, an attacker could use wpcf7r_reset_settings to reset the plugin’s settings, wpcf7r_add_action to add actions to a form, and more.

Patch / fix

fixed in 1

querysol redirection_for_contact_form_7 2.3.4

Exploit prediction

0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

wordfence.com https://www.wordfence.com/blog/2021/04/severe-vulnerabilities-patched-in-redirection-for-contact-form-7-plugin/ referenced PoC, tagged "exploit" by a source, unverified
wpscan.com https://wpscan.com/vulnerability/def87e69-bade-431b-b101-d463a26406e9 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

Query Solutions Redirection for Contact Form 7

Classification

Weakness

CWE-863 Incorrect Authorization

Technology feeds

WordPress rss critical rss

References

wordfence.com /blog/2021/04/severe-vulnerabilities-patched-in-redirection-for-contact-form-7-plugin/
exploit, vendor-advisory
wpscan.com /vulnerability/def87e69-bade-431b-b101-d463a26406e9
exploit, vendor-advisory

Sources

CVE List CVE-2021-24282
NVD CVE-2021-24282

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary