Known vulnerabilities in MailerSend – Official SMTP Integration

Improve your deliverability and avoid the spam box with MailerSend’s SMTP server. Check your analytics to improve your emails for better conversion!

1Reported vulnerabilities

4.3Highest CVSS score

1.0.8Latest version

2,000+Active installs

What to do now

Update MailerSend – Official SMTP Integration to 1.0.8 or later. 1 of these have a fixed version available. Updating resolves them.

Plugin last updated: June 26, 2026 / Tested up to WordPress: 6.9.7 / 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.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
CVE-2026-13156	Medium 4.3	0.1%	1.0.7 and earlier	`1.0.8`	June 29, 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.