Horizon Alert
Summary of the vulnerability and why it matters
This CVE affects a WordPress plugin used for forms and user registration, allowing unauthenticated attackers to create administrator accounts on affected websites. The issue stems from how the plugin handles user registration data, permitting the assignment of administrative privileges without proper checks. This could potentially lead to unauthorized control over WordPress sites.
- Unauthenticated attackers can gain admin access.
- Protects your website from unauthorized control.
- Confirm relevance and assess exposure.
Attack Path
How an attacker could exploit the issue
An unauthenticated attacker can target a WordPress website using the vulnerable plugin to escalate their privileges. The attacker begins by accessing the website, where they can easily obtain a nonce required for a specific form submission action. By crafting a malicious request to this action, the attacker can exploit a flaw in how user roles are managed to create a new administrator account on the website.
- No authentication required.
- Submitting specially crafted registration data.
- Attacker gains administrator privileges.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability could allow an unauthenticated attacker to create a new administrator account on a WordPress site. This is possible because the plugin's user registration process, when exposed on the front end, does not properly check user roles before assigning administrator privileges.
- WordPress user accounts.
- Unauthenticated users via exposed AJAX action.
- Site administration control.
Operational Fix
Recommended remediation, mitigation, and detection steps
The WordPress plugin "SimpleForm – Form Maker to Chat Apps with Quiz, Poll and Multi Lead Notifications" is affected by a critical privilege escalation vulnerability. Website owners and administrators are primarily responsible for addressing this issue. The initial step should involve identifying all instances of this plugin, assessing their exposure to public access, and determining which are business-critical before planning remediation.
- Application owners should own the issue.
- Verify plugin reachability and business criticality.
- Plan remediation or apply vendor updates.
