CVE-2025-66055

WordPress Email Subscribers & Newsletters plugin <= 5.9.10 - PHP Object Injection vulnerability

7.2 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.47%Up 0.4 points since Nov 22, 2025

What each source reports

CVE List Score used 7.2

WordPress Email Subscribers & Newsletters plugin <= 5.9.10 - PHP Object Injection vulnerability

Record: CVE-2025-66055
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

EUVDEUVD-2025-198485 7.2

Record: EUVD-2025-198485
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-96qq-9955-wf6g 7.2

Deserialization of Untrusted Data vulnerability in Icegram Email Subscribers & Newsletters email...

Record: GHSA-96qq-9955-wf6g
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

NVD 7.2

Record: CVE-2025-66055
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

Affected products

icegram email subscribers & newsletters

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-66055 is a high vulnerability (CVSS 7.2) in Icegram Email Subscribers & Newsletters, published November 21, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.47%, the 40th percentile. No source names a fixed version.