Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2021-4422
CVE-2021-4422:
WordPress vulnerability analysis and mitigation
Overview
CVE-2021-4422 affects the POST SMTP Mailer plugin for WordPress in versions up to and including 2.0.20. The vulnerability was identified as a Cross-Site Request Forgery (CSRF) issue due to missing or incorrect nonce validation in the handleCsvExport() function (NVD, CVE).
Technical details
The vulnerability stems from improper security implementation in the handleCsvExport() function, specifically the lack of proper nonce validation. This security flaw has been assigned a CVSS v3.1 Base Score of 4.3 (MEDIUM) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N, indicating a network-accessible vulnerability requiring user interaction (Wordfence).
Impact
When exploited, this vulnerability allows unauthenticated attackers to trigger a CSV export through a forged request, provided they can successfully trick a site administrator into performing an action such as clicking on a malicious link (NVD).
Mitigation and workarounds
Users should upgrade their POST SMTP Mailer plugin to a version newer than 2.0.20, which contains the security fix for this vulnerability (NVD).
Additional resources
Source: This report was generated using AI
Related WordPress vulnerabilities:
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