Vulnerability Details CVE-2021-4422
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 42.6%
CVSS Severity
CVSS v3 Score 4.3
References
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2473579%40post-smtp&new=2473579%40post-smtp&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e018ca7c-06dd-4d40-91d4-4ed188b8aaf2?source=cve
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2473579%40post-smtp&new=2473579%40post-smtp&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e018ca7c-06dd-4d40-91d4-4ed188b8aaf2?source=cve
Products affected by CVE-2021-4422
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cpe:2.3:a:wpexperts:post_smtp:-
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cpe:2.3:a:wpexperts:post_smtp:1.6.23
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cpe:2.3:a:wpexperts:post_smtp:1.6.24
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cpe:2.3:a:wpexperts:post_smtp:1.7.0
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cpe:2.3:a:wpexperts:post_smtp:1.7.1
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cpe:2.3:a:wpexperts:post_smtp:1.7.10
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cpe:2.3:a:wpexperts:post_smtp:1.7.2
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cpe:2.3:a:wpexperts:post_smtp:1.7.5
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cpe:2.3:a:wpexperts:post_smtp:1.7.6
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cpe:2.3:a:wpexperts:post_smtp:1.7.7
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cpe:2.3:a:wpexperts:post_smtp:1.7.8
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cpe:2.3:a:wpexperts:post_smtp:1.7.9
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cpe:2.3:a:wpexperts:post_smtp:1.8
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cpe:2.3:a:wpexperts:post_smtp:1.8.1
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cpe:2.3:a:wpexperts:post_smtp:1.8.2
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cpe:2.3:a:wpexperts:post_smtp:1.8.3
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cpe:2.3:a:wpexperts:post_smtp:1.8.4
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cpe:2.3:a:wpexperts:post_smtp:1.8.5
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cpe:2.3:a:wpexperts:post_smtp:1.8.6
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cpe:2.3:a:wpexperts:post_smtp:1.8.7
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cpe:2.3:a:wpexperts:post_smtp:1.8.8
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cpe:2.3:a:wpexperts:post_smtp:1.8.9
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cpe:2.3:a:wpexperts:post_smtp:1.9.0
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cpe:2.3:a:wpexperts:post_smtp:1.9.1
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cpe:2.3:a:wpexperts:post_smtp:1.9.2
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cpe:2.3:a:wpexperts:post_smtp:1.9.3
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cpe:2.3:a:wpexperts:post_smtp:1.9.4
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cpe:2.3:a:wpexperts:post_smtp:1.9.5
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cpe:2.3:a:wpexperts:post_smtp:1.9.6
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cpe:2.3:a:wpexperts:post_smtp:1.9.7
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cpe:2.3:a:wpexperts:post_smtp:1.9.8
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cpe:2.3:a:wpexperts:post_smtp:2.0
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cpe:2.3:a:wpexperts:post_smtp:2.0.1
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cpe:2.3:a:wpexperts:post_smtp:2.0.10
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cpe:2.3:a:wpexperts:post_smtp:2.0.11
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cpe:2.3:a:wpexperts:post_smtp:2.0.12
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cpe:2.3:a:wpexperts:post_smtp:2.0.13
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cpe:2.3:a:wpexperts:post_smtp:2.0.14
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cpe:2.3:a:wpexperts:post_smtp:2.0.15
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cpe:2.3:a:wpexperts:post_smtp:2.0.16
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cpe:2.3:a:wpexperts:post_smtp:2.0.17
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cpe:2.3:a:wpexperts:post_smtp:2.0.18
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cpe:2.3:a:wpexperts:post_smtp:2.0.19
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cpe:2.3:a:wpexperts:post_smtp:2.0.2
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cpe:2.3:a:wpexperts:post_smtp:2.0.20
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cpe:2.3:a:wpexperts:post_smtp:2.0.3
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cpe:2.3:a:wpexperts:post_smtp:2.0.4
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cpe:2.3:a:wpexperts:post_smtp:2.0.5
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cpe:2.3:a:wpexperts:post_smtp:2.0.6
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cpe:2.3:a:wpexperts:post_smtp:2.0.7
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cpe:2.3:a:wpexperts:post_smtp:2.0.8
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cpe:2.3:a:wpexperts:post_smtp:2.0.9