The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘msg’ parameter in all versions up to, and including, 2.8.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. CVE-2023-6621 appears to be a duplicate of this issue. CVE-2024-29128 appears to be a duplicate of this issue.
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Affected Vendors & Products
References
History
Wed, 08 Apr 2026 17:45:00 +0000
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| Description | The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘msg’ parameter in all versions up to, and including, 2.8.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. | The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘msg’ parameter in all versions up to, and including, 2.8.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. CVE-2023-6621 appears to be a duplicate of this issue. CVE-2024-29128 appears to be a duplicate of this issue. |
| Title | POST SMTP Mailer <= 2.8.6 - Reflected Cross-Site Scripting via msg |
Tue, 17 Jun 2025 21:15:00 +0000
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Status: PUBLISHED
Assigner: Wordfence
Published: 2024-01-03T04:29:33.793Z
Updated: 2026-04-08T17:01:31.782Z
Reserved: 2023-12-08T16:05:50.184Z
Link: CVE-2023-6629
Updated: 2024-08-02T08:35:14.828Z
Status : Modified
Published: 2024-01-03T05:15:11.463
Modified: 2026-04-08T18:18:38.940
Link: CVE-2023-6629
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