Known vulnerabilities in Mailgun for WordPress

Easily send email from your WordPress site through Mailgun using the HTTP API or SMTP.

2Reported vulnerabilities

9.8Highest CVSS score

2.2.2Latest version

80,000+Active installs

What to do now

Update Mailgun for WordPress to 2.2.1 or later. 2 of these have a fixed version available. Updating resolves them.

Plugin last updated: July 17, 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.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
CVE-2026-78003	Critical 9.8	0.9%	0 to 2.2.0 (inclusive)	`2.2.1`	August 22, 2026
CVE-2026-14834	Medium 5.3	0.2%	2.2.0 and earlier	`2.2.1`	July 13, 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.