# CVE-2023-6109: YOP Poll <= 6.5.26 - Race Condition to Vote Manipulation

> Unauthenticated attackers can manipulate poll results by exploiting a race condition to cast multiple votes in the YOP Poll WordPress plugin.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Nov 2023
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-pgj2-fwxq-v5vr

## What is CVE-2023-6109?

CVE-2023-6109 is a medium-severity vulnerability in yourownprogrammer YOP Poll, published on 14 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The YOP Poll plugin for WordPress is vulnerable to a race condition in all versions up to, and including, 6.5.26. This is due to improper restrictions on the add() function. This makes it possible for unauthenticated attackers to place multiple votes on a single poll even when the poll is set to one vote per person.

Weakness: CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization)

## Which versions are affected by CVE-2023-6109?

It affects 1 product.


Products: Yop-Poll Yop Poll.

## How do I fix CVE-2023-6109?

No fix has been published for CVE-2023-6109 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-6109 being exploited?

There is no known exploitation of CVE-2023-6109 in the wild and no public exploit code.

## Other vulnerabilities in yourownprogrammer YOP Poll

- [CVE-2021-24454](https://insights.sbomify.com/CVE-2021-24454/): YOP Poll < 6.2.8 - Stored Cross-Site Scripting (medium 6.1)
- [CVE-2021-24833](https://insights.sbomify.com/CVE-2021-24833/): YOP Poll < 6.3.1 - Author+ Stored Cross-Site Scripting via Preview Module (medium 5.4)
- [CVE-2021-24834](https://insights.sbomify.com/CVE-2021-24834/): YOP Poll < 6.3.1 - Author+ Stored Cross-Site Scripting via Options Module (medium 5.4)
- [CVE-2017-2127](https://insights.sbomify.com/CVE-2017-2127/): Cross-site scripting in YOP Poll (medium 5.4)
- [CVE-2022-1600](https://insights.sbomify.com/CVE-2022-1600/): YOP Poll < 6.4.3 - IP Spoofing (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-6109 and fix it if it is affected.

What it is: CVE-2023-6109 is a medium-severity vulnerability in yourownprogrammer YOP Poll, published on 14 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-6109 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-2023-6109/ (Markdown: https://insights.sbomify.com/CVE-2023-6109/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-6109
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-6109
- OSV: https://osv.dev/vulnerability/CVE-2023-6109

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-6109/
Summaries are generated and may contain mistakes; the official description above is the record.