Threat intelligence

AcyMailing <= 10.11.1 - Authenticated (Subscriber+) Missing Authorization to Account Takeover via Notification Template Update

CVE-2026-15426 · acymailing

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

Vulnerability: AcyMailing <= 10.11.1 - Authenticated (Subscriber+) Missing Authorization to Account Takeover via Notification Template Update
Affected software: acymailing(Plugin)
Affected versions: ≤ 10.11.1
Authentication: Authenticated (see advisory title)
Vulnerability type: Authentication bypass
CVE: CVE-2026-15426
Published: 11 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow access to accounts or admin areas without valid credentials.
Source: Data imported from Wordfence Intelligence (advisory 0c187d78-9f1d-4e55-a611-755ee30f855b). Methodology and redistribution notes

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