Kali Forms WordPress Plugin Information Disclosure Vulnerability via Missing Capability Check (CVE-2026-107342)
Executive & SecOps Summary
SECOPS ASSESSMENTKali Forms — Contact Form & Drag-and-Drop Builder WordPress plugin before version 2.4.30
Authenticated users with minimal privileges (Subscriber and above) can disclose the email address of any registered user, including administrators
Immediately update the Kali Forms plugin to version 2.4.30 or later
Affected Products & Version Scope
Remediation & Live Workaround Commands
PATCH & WORKAROUND1. Official Patch & Version Upgrade Commands
Use WP-CLI to quickly update the vulnerable plugin to the patched version on your production server.
# Update the Kali Forms plugin to the secure version
wp plugin update kali-forms --version=2.4.30
# Verify that the plugin has been successfully updated
wp plugin get kali-forms --field=version2. Temporary Workaround & Hardening Configuration
If an immediate update is not feasible, restrict low-privileged users from executing unauthorized AJAX actions by adding a restriction filter in your theme's functions.php file.
// Restrict subscriber access to admin-ajax handlers
add_action('admin_init', 'block_subscriber_ajax_abuse');
function block_subscriber_ajax_abuse() {
if (defined('DOING_AJAX') && DOING_AJAX) {
$user = wp_get_current_user();
if (in_array('subscriber', $user->roles)) {
$action = isset($_REQUEST['action']) ? $_REQUEST['action'] : '';
// Block access if the action originates from the vulnerable plugin scope
if (strpos($action, 'kali_forms') !== false) {
wp_die('Unauthorized access attempt.', 403);
}
}
}
}3. Log Audit & IoC Verification Commands
Audit your web server access logs and verify the currently installed plugin version to identify potential exposure.
# 1. Search access logs for suspicious AJAX requests targeting the plugin
grep 'admin-ajax.php' /var/log/apache2/access.log | grep -E 'kali_forms|test-email'
# 2. Check the installed plugin version via command line
cat /var/www/html/wp-content/plugins/kali-forms/readme.txt | grep -i 'Stable tag:'Block Exploits Instantly with Managed Virtual Patching Rules
Can't patch production immediately? Deploy managed WAF rules at the edge to intercept RCE, SQLi, and deserialization payloads before they hit your origin server.
Technical Root Cause & Exploitation Mechanics
1. Vulnerability Overview & Root Cause
This vulnerability (CVE-2026-107342) exists in the Kali Forms WordPress plugin due to a missing capability check within its test-email handler. Instead of verifying the user's administrative privileges, the application relies solely on a nonce that is accessible to any logged-in user. This architectural flaw allows low-privileged users to bypass authorization controls, leading to unauthorized information disclosure (CWE-200).
2. Exploitation Mechanics & Attack Scenario
An attacker authenticates to the target WordPress site with low-level privileges, such as a 'Subscriber' role. Upon logging in, the attacker extracts the valid nonce generated for authenticated sessions. By crafting a malicious AJAX request to the test-email handler endpoint containing this nonce, the attacker can query and retrieve the registered email addresses of other users, including high-value targets like site administrators, without triggering any permission blocks.
3. Infrastructure & Business Impact
Exposure of administrator email addresses significantly increases the risk of targeted spear-phishing, credential stuffing, and brute-force attacks. Since the administrator's email is a primary identifier for password resets and administrative logins, this vulnerability serves as a critical stepping stone for attackers aiming to achieve full site takeover and compromise the underlying web infrastructure.
Official Vendor Advisories & References
The Kali Forms — Contact Form & Drag-and-Drop Builder WordPress plugin before 2.4.30 does not perform a capability check when its test-email handler resolves and returns a user's email address, relying only on a nonce that is available to any logged-in user, allowing authenticated users with minimal privileges (Subscriber and above) to disclose the email address of any registered user, including administrators.
Frequently Asked SecOps Questions (CVE-2026-107342)
FAQQ1. How critical is CVE-2026-107342 and is it actively exploited in the wild?
CVE-2026-107342 is rated CVSS 4.3 (MEDIUM) with a 30-day EPSS exploitation probability of 0.2%. Organizations running affected versions should prioritize patching based on network exposure.
Q2. Which vendors and products are affected by CVE-2026-107342?
Primary impacted vendors include kali forms across kali forms — contact form & drag-and-drop builder. Scope summary: All versions of Kali Forms — Contact Form & Drag-and-Drop Builder WordPress plugin prior to 2.4.30
Q3. What temporary mitigations or workarounds exist for CVE-2026-107342 before patching?
[Mitigation] Immediately update the Kali Forms plugin to version 2.4.30 or later Follow the CLI remediation commands and interactive SecOps checklist on this page to restrict exposure prior to your maintenance window.
Generate an Internal Engineering Notice or CISO Report for CVE-2026-107342
Instantly format this advisory into an executive CISO summary or engineering patch ticket.
🔗 Related Advisories in Similar Stack (kali forms)
View Category →Kali Forms WordPress Plugin Broken Access Control Vulnerability (CVE-2026-107343): Unauthorized Email Sending and Spoofing
[Affected Scope] Kali Forms — Contact Form & Drag-and-Drop Builder WordPress plugin before version 2.4.30
WordPress Payment Forms for Paystack Plugin API Secret Key Disclosure Vulnerability (CVE-2026-110042)
[Affected Scope] Payment Forms for Paystack WordPress plugin versions before 4.0.6
Ahsay AhsayCBS Replication Receiver Remote Code Execution (RCE) Vulnerability Advisory (CVE-2026-105134)
[Affected Scope] AhsayCBS versions up to 9.15.2.69 and 10.3.4.44, specifically the Replication Receiver component
Adobe Commerce (Magento) Server-Side Template Injection (SSTI) Remote Code Execution (CVE-2026-75650)
[Affected Scope] All unpatched versions of Adobe Commerce and Magento Open Source.
Subscribe to Daily Vulnerability Briefings & KEV Alerts
Concise morning briefings for SecOps, DevSecOps, and SRE teams covering newly exploited CVEs and mitigation priorities.