7.2
High
CVE-2026-3090 The Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App plugin…
Description
The Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘event_type’ parameter in all versions up to, and including, 3.8.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability is only exploitable when the Post SMTP Pro plugin is also installed and its Reporting and Tracking extension is enabled.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App 3.8 | earliest → 3.8.0 | No fix stated |
Other CVEs of Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
The 14 CVEs of Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App →
CVE-2024-13362
Multiple plugins and/or themes for WordPress are vulnerable to Reflected Cross-Site Scripting via the url parameter in…
6.1
Medium
CVE-2026-2559
The Post SMTP plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability…
5.3
Medium
CVE-2025-12887
The Post SMTP plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.6.1
5.4
Medium
CVE-2025-11833
The Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App plugin for WordPress is vulnerable to…
9.8
Critical