CVE-2026-85682
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk2th percentile - higher than 2% of all known CVEs
Summary
The YOP Poll plugin for WordPress up to version 7.0.10 is vulnerable to Origin Validation Error. The plugin transmits a wp_rest nonce to window.opener via postMessage() with a wildcard targetOrigin. This allows 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.
Risk Assessment
An attacker can take over the administrator account, potentially leading to full compromise of the WordPress site.
Recommendation
Update the YOP Poll plugin to the latest version that includes the fix.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS