Threat intelligence

Mildhill <= 1.5 - Unauthenticated PHP Object Injection

CVE-2026-39573 · mildhill

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

Vulnerability: Mildhill <= 1.5 - Unauthenticated PHP Object Injection
Affected software: mildhill(Theme)
Affected versions: ≤ 1.5
Authentication: Unauthenticated
Vulnerability type: Other
CVE: CVE-2026-39573
Published: 8 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 82f1a77d-1068-48e5-8c3b-1fa4b43221f8). Methodology and redistribution notes

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