How severe is CVE-2026-12757?

Medium severity. CVSS v3 base score is 6.5 out of 10.

RCE in Icegram Email Subscribers & Newsletters – Marketing, Post Notifications Newsletter Plugin For WordPress

CVE-2026-12757

The The Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.9.27. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.

Vulnerability class: RCE (Remote Code Execution)

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Icegram Email Subscribers & Newsletters – Marketing, Post Notifications Newsletter Plugin For Wordpress

Weakness classification (CWE)

CWE-94 — Code Injection

References

Frequently asked questions

What is CVE-2026-12757?: CVE-2026-12757 is a medium-severity vulnerability in Icegram Email Subscribers & Newsletters – Marketing, Post Notifications Newsletter Plugin For WordPress, classified under Code Injection. CVSS score: 6.5/10. Published 2026-09-07.
How severe is CVE-2026-12757?: Medium severity. CVSS v3 base score is 6.5 out of 10.