CVE-2026-16291: CWE-639 Authorization Bypass Through User-Controlled Key in ProfileGrid
The ProfileGrid WordPress plugin before 5.9.9.8 does not verify that a notification belongs to the requesting user before deleting it, allowing any authenticated user such as a Subscriber to delete other users' notifications by enumerating notification identifiers.
AI Analysis
Technical Summary
CVE-2026-16291 is an authorization bypass vulnerability in the ProfileGrid WordPress plugin prior to version 5.9.9.8. The flaw arises from the plugin's failure to verify that a notification targeted for deletion belongs to the requesting user. As a result, authenticated users with low privileges can delete notifications of other users by enumerating notification identifiers, violating proper access control (CWE-639).
Potential Impact
The vulnerability allows unauthorized deletion of other users' notifications by any authenticated user with at least Subscriber privileges. While it does not disclose sensitive information or allow privilege escalation, it can disrupt user experience and integrity of notification data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting access to notification deletion functionality or monitoring for suspicious activity related to notification deletions.
CVE-2026-16291: CWE-639 Authorization Bypass Through User-Controlled Key in ProfileGrid
Description
The ProfileGrid WordPress plugin before 5.9.9.8 does not verify that a notification belongs to the requesting user before deleting it, allowing any authenticated user such as a Subscriber to delete other users' notifications by enumerating notification identifiers.
CVSS v3.1
Score 4.3medium
Affected software
ProfileGrid
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-16291 is an authorization bypass vulnerability in the ProfileGrid WordPress plugin prior to version 5.9.9.8. The flaw arises from the plugin's failure to verify that a notification targeted for deletion belongs to the requesting user. As a result, authenticated users with low privileges can delete notifications of other users by enumerating notification identifiers, violating proper access control (CWE-639).
Potential Impact
The vulnerability allows unauthorized deletion of other users' notifications by any authenticated user with at least Subscriber privileges. While it does not disclose sensitive information or allow privilege escalation, it can disrupt user experience and integrity of notification data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting access to notification deletion functionality or monitoring for suspicious activity related to notification deletions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-20T12:19:42.905Z
- State
- PUBLISHED
Threat ID: 6a6f99cabf32cb7a344bda5e
Added to database: 08/02/2026, 19:26:02 UTC
Last enriched: 08/10/2026, 14:48:00 UTC
Last updated: 09/15/2026, 10:01:30 UTC
Views: 57
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.