CVE-2026-3645
Missing Authorization in Punnel WordPress Plugin Allows Config Overwrite
Publication date: 2026-03-21
Last updated on: 2026-03-21
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| punnel | punnel | to 1.3.1 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-862 | The product does not perform an authorization check when an actor attempts to access a resource or perform an action. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The Punnel – Landing Page Builder plugin for WordPress has a vulnerability called Missing Authorization in all versions up to and including 1.3.1. Specifically, the save_config() function, which handles the 'punnel_save_config' AJAX action, does not perform any capability checks or nonce verification. This means that authenticated users with Subscriber-level access or higher can send a POST request to admin-ajax.php to overwrite the plugin's entire configuration, including the API key.
After the attacker sets the API key, they can use the plugin's public API endpoint (sniff_requests() at /?punnel_api=1), which only validates requests by comparing a POST token against the stored API key, to create, update, or delete arbitrary posts, pages, and products on the WordPress site.
How can this vulnerability impact me? :
This vulnerability allows an attacker with minimal privileges (Subscriber-level access) to take control over the plugin's configuration by changing the API key. Once they have control, they can manipulate the site's content by creating, updating, or deleting posts, pages, and products arbitrarily.
Such unauthorized modifications can lead to content defacement, loss of data integrity, disruption of business operations, and potential damage to the website's reputation.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know