CVE-2025-66055 HIGH

CVE-2025-66055: WordPress Email Subscribers & Newsletters plugin <= 5.9.10 - PHP Object Injection vulnerability

Vendor Icegram
Product Email Subscribers & Newsletters
Weakness CWE-502 · Unsafe deserialization
Published November 21, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in Icegram Email Subscribers & Newsletters email-subscribers allows Object Injection.This issue affects Email Subscribers & Newsletters: from n/a through <= 5.9.10.

Key dates

02Disclosure timeline

November 21, 2025 CVE published
April 28, 2026 Record updated

Related vulnerabilities

04Related CVE

CVE-2024-13789 Ravpage <= 2.31 - PHP Object Injection CVE-2025-0429 AI Power: Complete AI Pack <= 1.8.96 - Authenticated (Admin+) PHP Object Injection via wpaicg_export_ai_forms CVE-2026-25316 WordPress CartFlows plugin <= 2.1.19 - PHP Object Injection vulnerability CVE-2025-60080 WordPress PDF for Gravity Forms + Drag And Drop Template Builder plugin <= 6.5.0 - PHP Object Injection vulnerability CVE-2023-28115 Snappy vulnerable to PHAR deserialization, allowing remote code execution