Threat intelligence

Esmée <= 1.4 - Unauthenticated PHP Object Injection

CVE-2026-40759 · esme

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

Vulnerability: Esmée <= 1.4 - Unauthenticated PHP Object Injection
Affected software: esme(Theme)
Affected versions: ≤ 1.4
Authentication: Unauthenticated
Vulnerability type: Other
CVE: CVE-2026-40759
Published: 20 April 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 ea4a207e-bbe0-4974-a414-248d29c8fdf3). Methodology and redistribution notes

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