WP Vulnerability WatchVulnerability data as of September 7, 2026

Known vulnerabilities in Gmail SMTP

Connect to Gmail SMTP server to automatically send email from your WordPress site. Configure wp_mail() to use SMTP with OAuth 2.0 authentication.

1Reported vulnerabilities
4.3Highest CVSS score
1.2.3.21Latest version
10,000+Active installs

What to do now

Update Gmail SMTP to 1.2.3.20 or later. 1 of these have a fixed version available. Updating resolves them.

Plugin last updated: July 4, 2026 / Tested up to WordPress: 7.0.4 / View on wordpress.org

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVESeverityExploit probability
next 30 days		 Affected versionsFixed inPublished
CVE-2026-57657 Medium 4.3 0.1% 1.2.3.19 and earlier 1.2.3.20 June 26, 2026

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.