Instant CSS <= 1.2.1 - Cross-Site Request Forgery
Affected versions: *-1.2.1
Vulnerability type: CWE-352 Cross-Site Request Forgery (CSRF)
Affected software, patched versions and attribution
The Instant CSS plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.2.1. This is due to missing or incorrect nonce validation on several functions called via AJAX actions in the class.instantcss_ajax.php file. This makes it possible for unauthenticated attackers to save and retrieve theme data, css data, minify data, and preprocessor data via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Instant CSS
Affected versions: *-1.2.1
Patched versions: 1.2.2
Researcher credit: Nguyen Xuan Chien
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- Published
- September 29, 2023
- CVSS
- 4.3