Threat intelligence

Mailgun for WordPress <= 2.2.0 - Unauthenticated Server-Side Request Forgery (SSRF) via 'addresses' Array Keys

CVE-2026-78003 · 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 - Unauthenticated Server-Side Request Forgery (SSRF) via 'addresses' Array Keys
Affected software: mailgun(Plugin)
Affected versions: ≤ 2.2.0
Authentication: Unauthenticated
Vulnerability type: Other
CVE: CVE-2026-78003
Published: 21 August 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 110e888d-69fc-4682-b908-2b62288c5227). Methodology and redistribution notes

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