WP Vulnerability WatchVulnerability data as of September 7, 2026

Known vulnerabilities in SMTP Mailer

Configure a SMTP server to send email from your WordPress site. Configure the wp_mail() function to use SMTP instead of the PHP mail() function.

1Reported vulnerabilities
7.5Highest CVSS score
1.1.26Latest version
70,000+Active installs

What to do now

Update SMTP Mailer to 1.1.25 or later. 1 of these have a fixed version available. Updating resolves them.

Plugin last updated: May 26, 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-2026-32538 High 7.5 0.2% 1.1.24 and earlier 1.1.25 March 20, 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.