# CVE-2021-24651: Poll Maker < 3.4.2 - Unauthenticated Time Based SQL Injection

> Unauthenticated attackers can exploit a time-based SQL injection vulnerability in the Poll Maker plugin to exfiltrate sensitive data, including password hashes.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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:** 11 Oct 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-64xf-q24f-59cv

## What is CVE-2021-24651?

CVE-2021-24651 is a high-severity SQL injection vulnerability in Unknown Poll Maker, published on 11 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Poll Maker WordPress plugin before 3.4.2 allows unauthenticated users to perform SQL injection via the ays_finish_poll AJAX action. While the result is not disclosed in the response, it is possible to use a timing attack to exfiltrate data such as password hash.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), CWE-203 (Observable Discrepancy)

## Which versions are affected by CVE-2021-24651?

It affects 1 product.


Products: Ays-Pro Poll Maker.

## How do I fix CVE-2021-24651?

No fix has been published for CVE-2021-24651 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24651 being exploited?

There is no known exploitation of CVE-2021-24651 in the wild and no public exploit code.

## Other vulnerabilities in Unknown Poll Maker

- [CVE-2025-26971](https://insights.sbomify.com/CVE-2025-26971/): WordPress Poll Maker <= 5.6.5 - SQL Injection vulnerability (high 7.6)
- [CVE-2024-3600](https://insights.sbomify.com/CVE-2024-3600/): Poll Maker – Best WordPress Poll Plugin <= 5.1.8 - Missing Authorization to Unauthenticated Stored Cross-Site Scripting (high 7.2)
- [CVE-2021-24483](https://insights.sbomify.com/CVE-2021-24483/): Poll Maker < 3.2.1 - Authenticated Blind SQL Injections (high 7.2)
- [CVE-2023-41871](https://insights.sbomify.com/CVE-2023-41871/): WordPress Poll Maker Plugin <= 4.7.0 is vulnerable to Cross Site Scripting (XSS) (high 7.1)
- [CVE-2025-24577](https://insights.sbomify.com/CVE-2025-24577/): WordPress Poll Maker plugin <= 5.5.0 - Broken Access Control vulnerability (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24651 and fix it if it is affected.

What it is: CVE-2021-24651 is a high-severity SQL injection vulnerability in Unknown Poll Maker, published on 11 Oct 2021. 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-2021-24651 in the wild and no public exploit code.

Affected product: Unknown Poll Maker. 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-2021-24651/ (Markdown: https://insights.sbomify.com/CVE-2021-24651/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24651
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24651
- OSV: https://osv.dev/vulnerability/CVE-2021-24651

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24651/
Summaries are generated and may contain mistakes; the official description above is the record.