CVE-2026-78139: CWE-639 Authorization Bypass Through User-Controlled Key in Notifima
Description
Notifima WordPress plugin versions up to and including 3.1.3 contain an authorization bypass vulnerability. This flaw allows authenticated users with Subscriber-level access to unsubscribe other customers from product stock-alert notifications via a REST endpoint without verifying ownership of the subscription. The vulnerability is identified as CWE-639 and has a CVSS score of 4.3, indicating medium severity.
CVSS v3.1
Score 4.3medium
Affected software
Notifima
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Notifima WordPress plugin before version 3.1.4 does not properly verify that the caller owns the subscription being modified on one of its REST endpoints. This authorization bypass vulnerability (CWE-639) enables authenticated attackers with Subscriber-level privileges to unsubscribe arbitrary customers from product stock-alert notifications. The issue affects all versions up to and including 3.1.3. No patch or official remediation has been confirmed in the provided data.
Potential Impact
An attacker with Subscriber-level access can manipulate subscription data of other users by unsubscribing them from stock-alert notifications. This impacts the integrity of subscription management but does not affect confidentiality or availability. The CVSS score of 4.3 reflects a medium impact primarily on integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Subscriber-level access where possible and monitor for unauthorized subscription changes. Avoid granting unnecessary privileges to users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-23T05:02:37.578Z
- State
- PUBLISHED
Threat ID: 6a8fd7c3acd9273b49e1781e
Added to database: 08/27/2026, 06:22:59 UTC
Last enriched: 09/10/2026, 09:09:30 UTC
Last updated: 10/11/2026, 06:48:18 UTC
Views: 90
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.