Medium severity4.3NVD Advisory· Published Jul 1, 2023· Updated Jun 17, 2026
CVE-2021-4405
CVE-2021-4405
Description
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 epio_send_autosuggest_allowed() 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2<=3.5.3+ 1 more
- (no CPE)range: <=3.5.3
- (no CPE)range: <=3.5.3
Patches
Vulnerability mechanics
References
9- plugins.trac.wordpress.org/changeset/2473455/elasticpress/trunk/includes/classes/Feature/Autosuggest/Autosuggest.phpnvdPatch
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/nvdThird Party Advisory
- www.wordfence.com/threat-intel/vulnerabilities/id/8ab8eb9d-1427-4e99-8986-179147e0862envdThird Party Advisory
- blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/nvdNot Applicable
- blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/nvdNot Applicable
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/nvdNot Applicable
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/nvdNot Applicable
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/nvdNot Applicable
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/nvdNot Applicable
News mentions
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