CVE-2026-11880: CWE-639 Authorization Bypass Through User-Controlled Key in Fluent Forms
The Fluent Forms WordPress plugin before 6.2.1 does not properly verify ownership before processing a subscription cancellation request, allowing authenticated users with a low-privilege account to cancel subscriptions belonging to other users.
AI Analysis
Technical Summary
The Fluent Forms WordPress plugin versions prior to 6.2.1 do not properly verify that a user owns a subscription before processing a cancellation request. This authorization bypass (CWE-639) enables authenticated users with low privileges to cancel subscriptions of other users. The vulnerability requires network access and low privileges, with high attack complexity and no user interaction needed. The impact is limited to integrity, with no confidentiality or availability impact reported.
Potential Impact
An attacker with a low-privilege authenticated account can cancel subscriptions of other users without proper authorization. This impacts the integrity of subscription management but does not affect confidentiality or availability. There are no known exploits in the wild.
Mitigation Recommendations
No official patch or remediation level has been confirmed yet. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict low-privilege user capabilities related to subscription management if possible.
CVE-2026-11880: CWE-639 Authorization Bypass Through User-Controlled Key in Fluent Forms
Description
The Fluent Forms WordPress plugin before 6.2.1 does not properly verify ownership before processing a subscription cancellation request, allowing authenticated users with a low-privilege account to cancel subscriptions belonging to other users.
CVSS v3.1
Score 3.1low
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Fluent Forms WordPress plugin versions prior to 6.2.1 do not properly verify that a user owns a subscription before processing a cancellation request. This authorization bypass (CWE-639) enables authenticated users with low privileges to cancel subscriptions of other users. The vulnerability requires network access and low privileges, with high attack complexity and no user interaction needed. The impact is limited to integrity, with no confidentiality or availability impact reported.
Potential Impact
An attacker with a low-privilege authenticated account can cancel subscriptions of other users without proper authorization. This impacts the integrity of subscription management but does not affect confidentiality or availability. There are no known exploits in the wild.
Mitigation Recommendations
No official patch or remediation level has been confirmed yet. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict low-privilege user capabilities related to subscription management if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-06-10T13:23:48.881Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a44f13827e9c797195bba6d
Added to database: 07/01/2026, 10:51:36 UTC
Last enriched: 07/08/2026, 13:07:16 UTC
Last updated: 08/14/2026, 13:00:12 UTC
Views: 135
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