Name: CVE-2026-56053: Deserialization of Untrusted Data
Creator: Rapid7
Published: 2026-06-25T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-56053, CWE-502, CVSS 8.8, EPSS 0.00518

Subscriber PHP Object Injection in EventPrime <= 4.3.4.1 versions.

CVSS Details

CVSS 3.1 Base Score: 8.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Eventprime Event Calendar Management Plugin	—	Update eventprime-event-calendar-management plugin to version 4.3.4.2, or a newer patched version	Jun 30, 2026	Jun 25, 2026

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CVSS Details

Covered by Rapid7

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