Mailgun for WordPress vulnerabilities
Plugin slug mailgun · 2 known vulnerabilities · latest disclosed 2026-08-21 · WordPress.org page
Every listed vulnerability has a fix. Version 2.2.1 or later is not affected by any of them. If your site runs an older version, update it.
1 of 2 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Mailgun for WordPress
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Critical 9.8 | <= 2.2.0 | 2.2.1 | CVE-2026-78003 | 2026-08-21 | Advisory |
| Medium 5.3 | <= 2.2.0 | 2.2.1 | CVE-2026-14834 | 2026-07-13 | Advisory |
Check if a site is affected
Enter a site address to see which version of Mailgun for WordPress and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the Mailgun for WordPress plugin safe to use?
All 2 known issues are fixed in current versions (2.2.1 or later). Keeping it updated is what matters.
How do I check which version of Mailgun for WordPress my site runs?
In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable plugin?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.