CVE-2021-4422

Published: Jul 12, 2023Modified: Apr 8, 2026

4.3

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Exploitability: 2.8 / Impact: 1.4

Source: NVD

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 (1)

Products: Wpexperts: Post Smtp

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Wpexperts Post Smtp	Up to 2.0.20

Related CWEs

Cross-Site Request Forgery (CSRF)

The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.

References (18)

https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/

Source: security@wordfence.com

Third Party Advisory

https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/

Source: security@wordfence.com

Third Party Advisory

https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/

Source: security@wordfence.com

Third Party Advisory

https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/

Source: security@wordfence.com

Third Party Advisory

https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/

Source: security@wordfence.com

Third Party Advisory

https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/

Source: security@wordfence.com

Third Party Advisory

https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/

Source: security@wordfence.com

Third Party Advisory

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2473579%40post-smtp&new=2473579%40post-smtp&sfp_email=&sfph_mail=

Source: security@wordfence.com

Patch

https://www.wordfence.com/threat-intel/vulnerabilities/id/e018ca7c-06dd-4d40-91d4-4ed188b8aaf2?source=cve

Source: security@wordfence.com

Third Party Advisory

https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2473579%40post-smtp&new=2473579%40post-smtp&sfp_email=&sfph_mail=

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://www.wordfence.com/threat-intel/vulnerabilities/id/e018ca7c-06dd-4d40-91d4-4ed188b8aaf2?source=cve

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.