Email Subscribers & Newsletters <= 5.9.10 - Missing Authentication to Unauthenticated Action Scheduler Task Execution

Missing Authentication for Critical Function
CVE CVE-2025-12348
CVSS Medium (5.3)
Publicly Published December 11, 2025
Last Updated December 12, 2025
Researcher Adrian Lukita
Description

The Icegram Express - Email Subscribers, Newsletters and Marketing Automation Plugin for WordPress is vulnerable to Missing 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 `run_action_scheduler_task` function. This makes it possible for unauthenticated attackers to execute scheduled actions early or repeatedly by guessing action IDs, potentially triggering email sends, maintenance tasks, or other privileged operations, causing unexpected state changes and resource usage.

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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