Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App: Privilege escalation or authentication bypass
Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App is affected by privilege escalation or authentication bypass. The vulnerable path is reachable without authentication. A successful request can grant permissions or access that the caller should not possess.
- Component
- Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App
- Plugin slug
post-smtp- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Nov 01, 2025
- Weakness
- CWE-862 — Missing Authorization
This CVE was published Nov 01, 2025 and is one of 27 known issues for this plugin.
Update, patch or deactivate.
Update Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the __construct function in all versions up to, and including, 3.6.0. This makes it possible for unauthenticated attackers to read arbitrary logged emails sent through the Post SMTP plugin, including password reset emails containing password reset links, which can lead to account takeover.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H