Email Subscribers & Newsletters <= 5.9.10 - Missing Authentication to Unauthenticated Mailing Queue Trigger

Missing Authentication for Critical Function
CVE CVE-2025-12349
CVSS Medium (5.3)
Publicly Published November 18, 2025
Last Updated November 19, 2025
Researcher Adrian Lukita
Description

The Icegram Express - Email Subscribers, Newsletters and Marketing Automation Plugin for WordPress is vulnerable to Authorization in versions up to, and including, 5.9.10. This is due to the plugin not properly verifying that a user is authorized to perform an action in the `trigger_mailing_queue_sending` function. This makes it possible for unauthenticated attackers to force immediate email sending, bypass the schedule, increase server load, and change plugin state (e.g., last-cron-hit), enabling abuse or DoS-like effects.

References

1 affected software package

Software Type Plugin
Software Slug email-subscribers (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 5.9.10
Patched Version
  • 5.9.11
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