Frontend User Notes <= 2.1.0 - Insecure Direct Object Reference to Authenticated (Subscriber+) Arbitrary Note Modification

Authorization Bypass Through User-Controlled Key
CVE CVE-2025-12071
CVSS Medium (4.3)
Publicly Published February 17, 2026
Last Updated February 18, 2026
Researcher Athiwat Tiprasaharn (Jitlada)
Description

The Frontend User Notes plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.1.0 via the 'funp_ajax_modify_notes' AJAX endpoint due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify arbitrary notes that do not belong to them.

References

1 affected software package

Software Type Plugin
Software Slug frontend-user-notes (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 2.1.0
Patched Version
  • 2.1.1
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