# CVE-2021-38344: Brizy <= 2.3.11 Authenticated Stored Cross-Site Scripting

> Authenticated users can inject malicious JavaScript into pages via the Brizy Page Builder plugin, leading to script execution in other users' sessions.

- **Severity:** Medium 6.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Oct 2021
- **Updated:** 14 Feb 2025
- **Also known as:** GHSA-f84h-684p-rggr

## What is CVE-2021-38344?

CVE-2021-38344 is a medium-severity cross-site scripting vulnerability in Brizy.io Brizy - Page Builder, published on 14 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Brizy Page Builder plugin <= 2.3.11 for WordPress was vulnerable to stored XSS by lower-privileged users such as a subscribers. It was possible to add malicious JavaScript to a page by modifying the request sent to update the page via the brizy_update_item AJAX action and adding JavaScript to the data parameter, which would be executed in the session of any visitor viewing or previewing the post or page.

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

## Which versions are affected by CVE-2021-38344?

It affects 1 product.


Products: Brizy Brizy-Page Builder.

## How do I fix CVE-2021-38344?

No fix has been published for CVE-2021-38344 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-38344 being exploited?

There is no known exploitation of CVE-2021-38344 in the wild and no public exploit code.

## Other vulnerabilities in Brizy.io Brizy - Page Builder

- [CVE-2021-38346](https://insights.sbomify.com/CVE-2021-38346/): Brizy <= 2.3.11 Authenticated Unrestricted File Upload and Path Traversal (high 8.8)
- [CVE-2021-38345](https://insights.sbomify.com/CVE-2021-38345/): Brizy <= 1.0.125 and 1.0.127 – 2.3.11 Incorrect authorization checks allowing Post modification (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-38344 and fix it if it is affected.

What it is: CVE-2021-38344 is a medium-severity cross-site scripting vulnerability in Brizy.io Brizy - Page Builder, published on 14 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-38344 in the wild and no public exploit code.

Affected product: Brizy.io Brizy - Page Builder. 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-2021-38344/ (Markdown: https://insights.sbomify.com/CVE-2021-38344/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-38344
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-38344
- OSV: https://osv.dev/vulnerability/CVE-2021-38344

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-38344/
Summaries are generated and may contain mistakes; the official description above is the record.