Ninja Forms <= 3.14.0 - Unauthenticated Information Disclosure in nf_ajax_submit AJAX Action
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.3%
exploitation probability
0.3%top 74% of all CVEs
observed exploitation
nono source reports it
The Ninja Forms plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.14.0. This is due to the unsafe application of the `ninja_forms_merge_tags` filter to user-supplied input within repeater fields, which allows the resolution of `{post_meta:KEY}` merge tags without authorization checks. This makes it possible for unauthenticated attackers to extract arbitrary post metadata from any post on the site, including sensitive data such as WooCommerce billing emails, API keys, private tokens, and customer personal information via the `nf_ajax_submit` AJAX action.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
kstover · Ninja Forms – The Contact Form Builder That Grows With YouReferences
https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.13.3/includes/AJAX/Controllers/Submission.php#L222https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.13.3/includes/AJAX/Controllers/Submission.php#L706https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.13.3/includes/MergeTags/WP.php#L48https://plugins.trac.wordpress.org/changeset/3454719/ninja-forms/trunk/includes/AJAX/Controllers/Submission.phphttps://www.wordfence.com/threat-intel/vulnerabilities/id/24902fab-44ea-44c9-bcf5-70960cfeb402?source=cve