Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wpexperts | Post Smtp | <= 2.0.20 |
Related Weaknesses (CWE)
References
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/Third Party Advisory
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrfThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&oldPatch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e018ca7c-06dd-4d40-91dThird Party Advisory
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/Third Party Advisory
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrfThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
FAQ
What is CVE-2021-4422?
CVE-2021-4422 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 handleCsvExp...
How severe is CVE-2021-4422?
CVE-2021-4422 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-4422?
Check the references section above for vendor advisories and patch information. Affected products include: Wpexperts Post Smtp.