# CVE-2021-32790: Blind SQL Injection possible via Authenticated Web-hook Search API Endpoint

> Authenticated attackers with admin access or API keys can exploit blind SQL injection in WooCommerce webhook search endpoints to disclose sensitive data via timing attacks.

- **Severity:** Medium 4.9 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Jul 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-7vx5-x39w-q24g

## What is CVE-2021-32790?

CVE-2021-32790 is a medium-severity SQL injection vulnerability in woocommerce, published on 26 Jul 2021. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Woocommerce is an open source eCommerce plugin for WordPress. An SQL injection vulnerability impacts all WooCommerce sites running the WooCommerce plugin between version 3.3.0 and 3.3.6. Malicious actors (already) having admin access, or API keys to the WooCommerce site can exploit vulnerable endpoints of `/wp-json/wc/v3/webhooks`, `/wp-json/wc/v2/webhooks` and other webhook listing API. Read-only SQL queries can be executed using this exploit, while data will not be returned, by carefully crafting `search` parameter information can be disclosed using timing and related attacks. Version 3.3.6 is the earliest version of Woocommerce with a patch for this vulnerability. There are no known workarounds other than upgrading.

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

## Which versions are affected by CVE-2021-32790?

It affects 1 product.


Products: Woocommerce Woocommerce.

## How do I fix CVE-2021-32790?

No fix has been published for CVE-2021-32790 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-32790 being exploited?

There is no known exploitation of CVE-2021-32790 in the wild and no public exploit code.

## Other vulnerabilities in woocommerce

- [CVE-2019-20891](https://insights.sbomify.com/CVE-2019-20891/): WooCommerce Cross-Site Request Forgery (CSRF) (high 8.8)
- [CVE-2017-18356](https://insights.sbomify.com/CVE-2017-18356/): Code injection in n/a (high 8.8)
- [CVE-2018-20714](https://insights.sbomify.com/CVE-2018-20714/): Path traversal in n/a (high 8.1)
- [CVE-2025-5062](https://insights.sbomify.com/CVE-2025-5062/): WooCommerce <= 9.4.2 - PostMessage-Based Cross-Site Scripting (medium 6.1)
- [CVE-2019-9168](https://insights.sbomify.com/CVE-2019-9168/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-32790 and fix it if it is affected.

What it is: CVE-2021-32790 is a medium-severity SQL injection vulnerability in woocommerce, published on 26 Jul 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-32790 in the wild and no public exploit code.

Affected product: woocommerce. 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-2021-32790/ (Markdown: https://insights.sbomify.com/CVE-2021-32790/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-32790
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-32790
- OSV: https://osv.dev/vulnerability/CVE-2021-32790

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-32790/
Summaries are generated and may contain mistakes; the official description above is the record.