CVE-2026-77116: CWE-639 Authorization Bypass Through User-Controlled Key in Brave
Description
Brave Popup Builder versions prior to 0.8.6 contain an authorization bypass vulnerability allowing any logged-in user to access popup content they should not be able to view by manipulating a post ID in the URL.
CVSS v3.1
Score 4.3medium
Affected software
Brave
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-77116 is an authorization bypass vulnerability in Brave Popup Builder (slug: brave-popup-builder) affecting versions before 0.8.6. The flaw allows any logged-in user, including Subscribers or WooCommerce Customers, to read popup content without proper access control by passing a post ID parameter in the URL. This issue is classified under CWE-639 (Authorization Bypass Through User-Controlled Key).
Potential Impact
The vulnerability enables unauthorized disclosure of popup content to any logged-in user, potentially exposing sensitive or restricted information. The CVSS score is 4.3 (medium severity), indicating limited confidentiality impact with no integrity or availability impact.
Mitigation Recommendations
No official patch or fix information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict user roles or access where possible to limit exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-20T12:20:10.497Z
- State
- PUBLISHED
Threat ID: 6a8a91afacd9273b49900c7f
Added to database: 08/23/2026, 06:22:39 UTC
Last enriched: 09/10/2026, 23:33:34 UTC
Last updated: 10/06/2026, 18:48:25 UTC
Views: 95
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