Critical severity · published Nov 1, 2025
CVE-2025-11833
Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App <= 3.6.0 - Missing Authorization to Account Takeover via Unauthenticated Email Log Disclosure
9.8
CVSS
61.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)61.5% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PS
Affected product
PS
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
saadiqbal
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-11833
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-11833
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/post-smtp/tags/3.5.0/Postman/PostmanEmailLogs.php#L51
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3386160/post-smtp
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/491f44fc-712c-4f67-b5c2-a7396941afc1?source=cve
More from Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
7.2
CVE-2026-3090
Post SMTP <= 3.8.0 - Unauthenticated Stored Cross-Site Scripting via 'event_type'
7.2
CVE-2024-5207
POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress <= 2.9.3 - Authenticated (Administrator+) SQL Injection
6.1
CVE-2025-0521
Post SMTP <= 3.0.2 - Unauthenticated Stored Cross-Site Scripting
5.4
CVE-2025-12887
Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App <= 3.6.1 - Missing Authorization to Authenticated (Subscriber+) OAuth Token Update
5.3
CVE-2026-2559
Post SMTP <= 3.8.0 - Missing Authorization to Authenticated (Subscriber+) Office 365 OAuth Configuration Overwrite
