Medium severity4.3NVD Advisory· Published Jul 12, 2023· Updated Apr 8, 2026
CVE-2021-4422
CVE-2021-4422
Description
The POST SMTP Mailer plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.0.20. This is due to missing or incorrect nonce validation on the handleCsvExport() function. This makes it possible for unauthenticated attackers to trigger a CSV export via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Affected products
2Patches
Vulnerability mechanics
References
9- plugins.trac.wordpress.org/changesetnvdPatch
- blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/nvdThird Party Advisory
- blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/nvdThird Party Advisory
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/nvdThird Party Advisory
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/nvdThird Party Advisory
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/nvdThird Party Advisory
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/nvdThird Party Advisory
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/nvdThird Party Advisory
- www.wordfence.com/threat-intel/vulnerabilities/id/e018ca7c-06dd-4d40-91d4-4ed188b8aaf2nvdThird Party Advisory
News mentions
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