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SMTP for SendGrid vulnerabilities

SMTP for SendGrid has 1 known vulnerability in this database. The most recent published record is dated 22 Feb 2025.

Known vulnerabilities
1
Active installs
1,000+
Latest version
1.5.1
Last updated
18 May 2026
Most recent
22 Feb 2025

Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.

VulnerabilitySeverityAffectedFixPublished
Cross-site scripting (XSS)
CVE-2025-0918
High 7.2Before 1.4Fixed in 1.422 Feb 2025
Read the published descriptions
CVE-2025-0918, 22 Feb 2025
The SMTP for SendGrid - YaySMTP plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.4 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. CVE record

What to do if you run SMTP for SendGrid

If you run SMTP for SendGrid, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.

If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.

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