Threat intelligence

Mailgun for WordPress <= 2.2.0 - Missing Authorization to Unauthenticated Arbitrary Mailgun List Subscription

CVE-2026-14834 · mailgun

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Mailgun at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Mailgun for WordPress <= 2.2.0 - Missing Authorization to Unauthenticated Arbitrary Mailgun List Subscription
Affected software: mailgun(Plugin)
Affected versions: ≤ 2.2.0
Authentication: Unauthenticated
Vulnerability type: Other
CVE: CVE-2026-14834
Published: 13 July 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source: Data imported from Wordfence Intelligence (advisory 08f7800a-3c05-4654-b909-625c304d4129). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Mailgun version against this catalog when the Defence plugin is connected to your WordPress site.

Start SiteRespond Defence for WordPress — £29.99/monthScan your website

All Mailgun advisoriesBack to catalog