CVE-2026-85682

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.1% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2026-09-04 13:42 UTC ReservedThe CVE id was reserved by its CNA
2. 2026-09-24 09:17 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2026-09-24 15:17 UTC Last updatedMost recent change to the record

Details

Published

2026-09-24 09:17 UTC

Last modified

2026-09-24 15:17 UTC

Exploit probability

0.1% · EPSS, next 30 days

Weakness

CWE-346

Record status

Deferred

Attack profile CVSS 3.1 · 8.8

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High