CVE-2026-78139
Deferred Deferred - Pending Action

Unauthorized Unsubscribe in Notifima WordPress Plugin

Publication date: 2026-08-27

Last updated on: 2026-08-27

Assigner: WPScan

Description
The Notifima WordPress plugin before 3.1.4 does not verify that the caller owns the subscription being modified on one of its REST endpoints in all versions up to, and including, 3.1.3, allowing authenticated attackers with Subscriber-level access to unsubscribe arbitrary customers from product stock-alert notifications.

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Meta Information

Published
2026-08-27
Last Modified
2026-08-27
Generated
2026-09-16
AI Q&A
2026-08-27
EPSS Evaluated
2026-09-15
NVD
CVE-2026-78139
EUVD
EUVD-2026-66884

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
notifima notifima to 3.1.3 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

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Executive Summary

The Notifima WordPress plugin before version 3.1.4 has an Insecure Direct Object Reference (IDOR) vulnerability. This allows authenticated users with Subscriber-level access to unsubscribe arbitrary customers from product stock-alert notifications without proper authorization checks.

Detection Guidance

Check the installed version of the Notifima WordPress plugin. If it is below 3.1.4, the system is vulnerable. Use commands like 'wp plugin list' in WordPress CLI or inspect the plugin files for version details.

Impact Analysis

An attacker with Subscriber access could disrupt notifications for other users, potentially causing missed stock alerts or confusion. This could affect customer experience and trust in the service.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by allowing unauthorized access to customer notification preferences. Unauthorized unsubscription from stock-alert notifications may lead to missed communications, which could affect data subject rights under GDPR or patient notifications under HIPAA.

Mitigation Strategies

Update the Notifima plugin to version 3.1.4 or later immediately. Remove or disable the plugin if an update is not possible. Review user roles to ensure only authorized users have Subscriber-level access.

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