CVE-2021-4405: ElasticPress <= 3.5.3 - Cross-Site Request Forgery Bypass
The ElasticPress plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.5.3. This is due to missing or incorrect nonce validation on the epiosendautosuggestallowed() function. This makes it possible for unauthenticated attackers to send allowed parameters for autosuggest to elasticpress[.]io via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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Event History
Frequently Asked Questions
What is the severity of CVE-2021-4405?
CVE-2021-4405 has a medium severity level due to its potential for Cross-Site Request Forgery attacks.
How do I fix CVE-2021-4405?
To fix CVE-2021-4405, update the ElasticPress plugin to version 3.5.4 or later.
What type of vulnerability is CVE-2021-4405?
CVE-2021-4405 is identified as a Cross-Site Request Forgery vulnerability.
Who is affected by CVE-2021-4405?
The vulnerability affects users of the ElasticPress plugin for WordPress versions up to 3.5.3.
Can CVE-2021-4405 allow unauthorized actions?
Yes, CVE-2021-4405 can allow unauthenticated attackers to perform unauthorized actions on affected websites.