Complianz <= 6.4.4 (Premium <= 6.4.6.1) - Cross-Site Request Forgery to Stored Cross-Site Scripting
Strategic Overview
- Status
- Patched in 6.4.7
- Affected Plugin
- Complianz Premium – GDPR/CCPA Cookie Consent
- Affected Version
<= 6.4.6.1- CVSS
- 6.1Medium
- Weakness type
- CWE-352 · Cross-Site Request Forgery (CSRF)
- CVE
CVE-2023-33333
At a glance
CVE-2023-33333 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Complianz Premium WordPress plugin, affecting versions <= 6.4.6.1. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 6.4.7; sites on affected versions should update now. Disclosed June 2023, reported by Rafie Muhammad.
Vulnerability Overview
The Complianz plugin for WordPress is vulnerable to Cross-Site Request Forgery to Stored Cross-Site Scripting in versions up to, and including, 6.4.4 (Free) and 6.4.6.1 (Premium). This is due to missing nonce validation on the ajax_script_add() and ajax_script_save() functions called via AJAX actions. This makes it possible for unauthenticated attackers to invoke this function and add web scripts to a site via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.
CWE-352: Cross-Site Request Forgery (CSRF)
Complianz Premium <= 6.4.6.1 carries this weakness at ajax_script_add(), and reaching it takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.
An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Complianz Premium the fix is 6.4.7: builds <= 6.4.6.1 are affected, anything from 6.4.7 onward is not.
Remediation
Update to version 6.4.7, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Complianz Premium: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Complianz Premium 6.4.7 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Other vulnerabilities in Complianz Premium – GDPR/CCPA Cookie Consent
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