# CVE-2021-25101: Anti-Malware Security and Brute-Force Firewall < 4.20.94 - Admin+ Reflected Cross-Site Scripting

> An admin user can inject malicious scripts into admin pages via unsanitized POST data, affecting other admin users.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 21 Feb 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-9v6h-h8cq-vv39

## What is CVE-2021-25101?

CVE-2021-25101 is a medium-severity cross-site scripting vulnerability in Unknown Anti-Malware Security and Brute-Force Firewall, published on 21 Feb 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

The Anti-Malware Security and Brute-Force Firewall WordPress plugin before 4.20.94 does not sanitise and escape the POST data before outputting it back in attributes of an admin page, leading to a Reflected Cross-Site scripting. Due to the presence of specific parameter value, available to admin users, this can only be exploited by an admin against another admin user.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2021-25101?

It affects 1 product.


Products: Anti-Malware Security and Brute-Force Firewall Project Anti-Malware Security and Brute-Force Firewall.

## How do I fix CVE-2021-25101?

No fix has been published for CVE-2021-25101 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-25101 being exploited?

There is no known exploitation of CVE-2021-25101 in the wild and no public exploit code.

## Other vulnerabilities in Unknown Anti-Malware Security and Brute-Force Firewall

- [CVE-2022-2599](https://insights.sbomify.com/CVE-2022-2599/): Anti-Malware Security and Brute-Force Firewall < 4.21.83 - Reflected Cross-Site Scripting (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-25101 and fix it if it is affected.

What it is: CVE-2021-25101 is a medium-severity cross-site scripting vulnerability in Unknown Anti-Malware Security and Brute-Force Firewall, published on 21 Feb 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-25101 in the wild and no public exploit code.

Affected product: Unknown Anti-Malware Security and Brute-Force Firewall. 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-2021-25101/ (Markdown: https://insights.sbomify.com/CVE-2021-25101/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-25101
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-25101
- OSV: https://osv.dev/vulnerability/CVE-2021-25101

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-25101/
Summaries are generated and may contain mistakes; the official description above is the record.