Name: CVE-2026-42687: Deserialization of Untrusted Data
Creator: Rapid7
Published: 2026-06-15T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-42687, CWE-502, CVSS 8.1, EPSS 0.00317

Unauthenticated PHP Object Injection in EventPrime <= 4.3.2.1 versions.

CVSS Details

CVSS 3.1 Base Score: 8.1
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/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 4.3.2.2, or a newer patched version	Jun 2, 2026	May 25, 2026

Prioritize with Active Threat Intelligence

With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.

Explore Intelligence Hub

MDR Buyer's Guide

Global Threat Landscape Report

Grow your business

CVSS Details

Covered by Rapid7

Prioritize with Active Threat Intelligence