CVE-2021-24163

moderate-risk
Published 2021-04-05

The AJAX action, wp_ajax_ninja_forms_sendwp_remote_install_handler, did not have a capability check on it, nor did it have any nonce protection, therefore making it possible for low-level users, such as subscribers, to install and activate the SendWP Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress WordPress plugin before 3.4.34 and retrieve the client_secret key needed to establish the SendWP connection while also installing the SendWP plugin.

Do I need to act?

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0.60% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Ninjaforms

References (4)

Exploit https://wpscan.com/vulnerability/55fde9fa-f6cd-4546-bee8-4acc628251c2
Third Party Advisory https://www.wordfence.com/blog/2021/02/one-million-sites-affected-four-severe-vu...
Exploit https://wpscan.com/vulnerability/55fde9fa-f6cd-4546-bee8-4acc628251c2
Third Party Advisory https://www.wordfence.com/blog/2021/02/one-million-sites-affected-four-severe-vu...
37
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 2/34 · Minimal
Exposure 5/34 · Minimal