YOP Poll <= 7.0.10 - Unauthenticated Origin Validation Error to Administrator Account Takeover via '/auth/wp-login-redirect' REST Route
| CVE | CVE-2026-85682 |
|---|---|
| CVSS | 8.8 (High) |
| Publicly Published | September 23, 2026 |
| Last Updated | September 24, 2026 |
| Researcher |
Supakiad S. (m3ez)
- E-CQURITY (Thailand)
|
Description
The YOP Poll plugin for WordPress is vulnerable to Origin Validation Error in all versions up to, and including, 7.0.10. This is due to the plugin transmitting a wp_rest nonce to window.opener via postMessage() with a wildcard targetOrigin. This makes it possible for unauthenticated attackers to steal a REST nonce scoped to a logged-in Administrator and use it to change the Administrator's email address and password, resulting in full account takeover. The Administrator must open an attacker-controlled page in order to exploit this vulnerability.
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Vulnerability Details for YOP Poll
| Software Type | Plugin |
|---|---|
| Software Slug | yop-poll (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 7.0.11, or a newer patched version |
| Affected Version |
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| Patched Version |
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