Threat intelligence

Booking Activities <= 1.18.4 - Unauthenticated PHP Object Injection

CVE-2026-28176 · booking-activities

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

Vulnerability: Booking Activities <= 1.18.4 - Unauthenticated PHP Object Injection
Affected software: booking-activities(Plugin)
Affected versions: ≤ 1.18.4
Authentication: Unauthenticated
Vulnerability type: Other
CVE: CVE-2026-28176
Published: 13 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 64920442-ce61-4bcf-8aae-472a008be0dc). Methodology and redistribution notes

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