Cross-Site Request Forgery in POST SMTP Mailer Plugin for WordPress
CVE-2021-4422

4.3MEDIUM

Key Information:

Vendor

Wordpress
Status
Post Smtp Mailer – Email Log, Delivery Failure Notifications And Best Mail Smtp For WordPress
Vendor
CVE Published:
12 July 2023

What is CVE-2021-4422?

The POST SMTP Mailer plugin for WordPress is susceptible to Cross-Site Request Forgery due to inadequate nonce validation on the handleCsvExport() function. This vulnerability allows unauthenticated attackers to potentially trigger a CSV export by crafting a malicious request, deceiving an administrator into executing it through social engineering tactics such as enticing them to click a link.

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Deploy the Patch

Affected Version(s)

POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress * <= 2.0.20

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://blog.nintechnet.com/25-wordpress-plugins-vulnerab...
https://blog.nintechnet.com/more-wordpress-plugins-and-th...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jerome Bruandet
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