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

Published Nov 21, 2025
·
Updated

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.

Affected Software

2 affected components
Icegram Email Subscribers & Newsletters<=5.9.10
WordPress Email Subscribers & Newsletters<=5.9.10

Event History

Nov 21, 2025
CVE Published
via MITRE·12:29 PM
Data Sourced
via MITRE·12:29 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·01:15 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2025-66055?

CVE-2025-66055 has a high severity rating due to the potential for remote code execution through object injection.

2

How do I fix CVE-2025-66055?

To fix CVE-2025-66055, update the Icegram Email Subscribers & Newsletters plugin to version 5.9.11 or later.

3

What is the impact of CVE-2025-66055?

The impact of CVE-2025-66055 could allow an attacker to execute arbitrary code on the server through deserialization of untrusted data.

4

Which software versions are affected by CVE-2025-66055?

CVE-2025-66055 affects Icegram Email Subscribers & Newsletters versions up to and including 5.9.10.

5

Is CVE-2025-66055 specific to any CMS?

Yes, CVE-2025-66055 specifically affects the Icegram Email Subscribers & Newsletters plugin used within WordPress.

Contact

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