# CVE-2026-85682: Security feature bypass in YOP Poll

> Unauthenticated attackers can steal admin REST nonces via postMessage to take over administrator accounts in YOP Poll.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 24 Sep 2026
- **Updated:** 24 Sep 2026
- **Also known as:** GHSA-mm9j-887x-mwhq

## What is CVE-2026-85682?

CVE-2026-85682 is a high-severity vulnerability in yourownprogrammer YOP Poll, published on 24 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-346 (Origin Validation Error)

## Which versions are affected by CVE-2026-85682?


## How do I fix CVE-2026-85682?

No fix has been published for CVE-2026-85682 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-85682 being exploited?

There is no known exploitation of CVE-2026-85682 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-85682 and fix it if it is affected.

What it is: CVE-2026-85682 is a high-severity vulnerability in yourownprogrammer YOP Poll, published on 24 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-85682 in the wild and no public exploit code.

Affected product: yourownprogrammer YOP Poll. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-85682/ (Markdown: https://insights.sbomify.com/CVE-2026-85682/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-85682
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-85682
- OSV: https://osv.dev/vulnerability/CVE-2026-85682

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-85682/
Summaries are generated and may contain mistakes; the official description above is the record.