CVE-2026-86801: CWE-306 Missing Authentication for Critical Function in To Do List Member
The To Do List Member WordPress plugin from 1.4 through 1.6 ships a file upload endpoint that does not load WordPress and therefore applies no authentication, capability or nonce check of any kind, and validates only the name of an uploaded file rather than its content, allowing unauthenticated users to store active content served from the site's own origin, and to list and delete the files already staged there.
AI Analysis
Technical Summary
CVE-2026-86801 describes a missing authentication vulnerability (CWE-306) in the To Do List Member WordPress plugin versions 1.4 through 1.6. The plugin exposes a file upload endpoint that operates without loading WordPress, thus bypassing all authentication, capability, and nonce checks. The endpoint only validates the uploaded file's name, not its content, enabling unauthenticated attackers to upload, list, and delete files containing active content served from the site's origin. This flaw allows attackers to execute arbitrary code or manipulate site content, leading to high impact on confidentiality, integrity, and availability.
Potential Impact
An unauthenticated attacker can upload and manage active content on the affected site, potentially executing arbitrary code or manipulating site data. This results in a high impact on confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the vulnerable endpoint if possible or disable the plugin. Monitor for updates from the vendor and apply official patches once released.
CVE-2026-86801: CWE-306 Missing Authentication for Critical Function in To Do List Member
Description
The To Do List Member WordPress plugin from 1.4 through 1.6 ships a file upload endpoint that does not load WordPress and therefore applies no authentication, capability or nonce check of any kind, and validates only the name of an uploaded file rather than its content, allowing unauthenticated users to store active content served from the site's own origin, and to list and delete the files already staged there.
CVSS v3.1
Score 8.8high
Affected software
To Do List Member
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86801 describes a missing authentication vulnerability (CWE-306) in the To Do List Member WordPress plugin versions 1.4 through 1.6. The plugin exposes a file upload endpoint that operates without loading WordPress, thus bypassing all authentication, capability, and nonce checks. The endpoint only validates the uploaded file's name, not its content, enabling unauthenticated attackers to upload, list, and delete files containing active content served from the site's origin. This flaw allows attackers to execute arbitrary code or manipulate site content, leading to high impact on confidentiality, integrity, and availability.
Potential Impact
An unauthenticated attacker can upload and manage active content on the affected site, potentially executing arbitrary code or manipulating site data. This results in a high impact on confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the vulnerable endpoint if possible or disable the plugin. Monitor for updates from the vendor and apply official patches once released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-08T12:23:05.823Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aab941b55bf5e2cf5eb08bf
Added to database: 09/17/2026, 07:17:47 UTC
Last enriched: 09/17/2026, 07:31:31 UTC
Last updated: 09/18/2026, 00:17:11 UTC
Views: 16
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