The YaySMTP plugin for WordPress is vulnerable to SQL Injection in versions up to, and including, 2.6.6 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
CVE-2025-53256 is a medium severity with CVSS 4.9 SQL Injection issue affecting the Plugin YaySMTP and Email Logs: Amazon SES, SendGrid, Outlook, Mailgun, Brevo, Google and Any SMTP Service. It affects Versions up to 2.6.6 and is fixed in 2.6.7.
CVE-2025-53256 is tracked for the Plugin YaySMTP and Email Logs: Amazon SES, SendGrid, Outlook, Mailgun, Brevo, Google and Any SMTP Service as medium severity with CVSS 4.9. The affected range is Versions up to 2.6.6. Update YaySMTP and Email Logs: Amazon SES, SendGrid, Outlook, Mailgun, Brevo, Google and Any SMTP Service to 2.6.7 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
yaysmtp
View on wordpress.org
|
| CVE | CVE-2025-53256 |
| Patched Versions |
2.6.7
|
| Affected Versions |
Versions up to 2.6.6
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
YaySMTP – Simple WP SMTP Mail <= 2.2 - Sensitive Information Disclosure
YaySMTP 2.4.9 - 2.6.3 - Unauthenticated Stored Cross-Site Scripting
YaySMTP <= 2.4.5 - Unauthenticated Stored Cross-Site Scripting via Email
YaySMTP – Simple WP SMTP Mail <= 2.2 - Missing Authorization to Sensitive Information Exposure
YaySMTP – Simple WP SMTP Mail <= 2.2 - Stored Cross-Site Scripting
YaySMTP – Simple WP SMTP Mail <= 2.2.1 - Authenticated (Admin+) Stored Cross-Site Scripting
YaySMTP <= 2.6.4 - Authenticated (Administrator+) SQL Injection
This record contains material that is subject to copyright
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. Read more
License: CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. Read more
