Medium severity · published Sep 3, 2025
CVE-2025-9219
Post SMTP <= 3.4.1 - Missing Authorization to Authenticated (Subscriber+) Limited Plugin Option Update
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
The Post SMTP – WP SMTP Plugin with Email Logs and Mobile App for Failure Notifications – Gmail SMTP, Office 365, Brevo, Mailgun, Amazon SES and more plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'update_post_smtp_pro_option_callback' function in all versions up to, and including, 3.4.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to enable pro extensions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% 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-2025-9219
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-9219
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/post-smtp/trunk/Postman/Wizard/NewWizard.php#L1858
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3353624/
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/65914bbf-6563-4bf2-a358-885e182a1365?source=cve
More from Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
9.8
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
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