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MailPoet vulnerabilities
MailPoet has 3 known vulnerabilities in this database. The most recent published record is dated 15 May 2025.
- Known vulnerabilities
- 3
- Active installs
- 500,000+
- Latest version
- 5.40.0
- Last updated
- 29 Sep 2026
- Most recent
- 15 May 2025
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Cross-site scripting (XSS) CVE-2024-12743 | Medium 4.8 | Before 5.5.2 | Fixed in 5.5.2 | 15 May 2025 |
| Cross-site scripting (XSS) CVE-2024-10103 | Medium 6.1 | Before 5.3.2 | Fixed in 5.3.2 | 19 Nov 2024 |
| Cross-site scripting (XSS) CVE-2019-11843 | Medium 6.1 | Before 3.23.2 | Fixed in 3.23.2 | 2 Jun 2020 |
Read the published descriptions
- CVE-2024-12743, 15 May 2025
- The MailPoet WordPress plugin before 5.5.2 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup). CVE record
- CVE-2024-10103, 19 Nov 2024
- In the process of testing the MailPoet WordPress plugin before 5.3.2, a vulnerability was found that allows you to implement Stored XSS on behalf of the editor by embedding malicious script, which entails account takeover backdoor CVE record
- CVE-2019-11843, 2 Jun 2020
- The MailPoet plugin before 3.23.2 for WordPress allows remote attackers to inject arbitrary web script or HTML using extra parameters in the URL (Reflective Server-Side XSS). CVE record
What to do if you run MailPoet
If you run MailPoet, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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