# CVE-2021-24863: StopBadBots < 6.67 - Unauthenticated SQL Injection

> Unauthenticated attackers can inject SQL commands via the User Agent header in the StopBadBots WordPress plugin, potentially reading or modifying database contents.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 13 Dec 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-7pv6-jghj-vwmc

## What is CVE-2021-24863?

CVE-2021-24863 is a critical SQL injection vulnerability in Unknown WP Block and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection Plugin StopBadBots, published on 13 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The WP Block and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection Plugin StopBadBots WordPress plugin before 6.67 does not sanitise and escape the User Agent before using it in a SQL statement to save it, leading to a SQL injection

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

## Which versions are affected by CVE-2021-24863?

It affects 1 product.


Products: Billminozzi Stop Bad Bots.

## How do I fix CVE-2021-24863?

No fix has been published for CVE-2021-24863 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24863 being exploited?

There is no known exploitation of CVE-2021-24863 in the wild and no public exploit code.

## Other vulnerabilities in Unknown WP Block and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection Plugin StopBadBots

- [CVE-2021-24727](https://insights.sbomify.com/CVE-2021-24727/): Block and Stop Bad Bots < 6.60 - Authenticated SQL Injections (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24863 and fix it if it is affected.

What it is: CVE-2021-24863 is a critical SQL injection vulnerability in Unknown WP Block and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection Plugin StopBadBots, published on 13 Dec 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-2021-24863 in the wild and no public exploit code.

Affected product: Unknown WP Block and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection Plugin StopBadBots. 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-2021-24863/ (Markdown: https://insights.sbomify.com/CVE-2021-24863/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24863
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24863
- OSV: https://osv.dev/vulnerability/CVE-2021-24863

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24863/
Summaries are generated and may contain mistakes; the official description above is the record.