# CVE-2021-37330: Cross-site scripting in n/a

> Attackers can inject malicious JavaScript via SVG avatar uploads, leading to XSS when viewed by other users or admins.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 4 Oct 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-699q-f67q-343m

## What is CVE-2021-37330?

CVE-2021-37330 is a medium-severity cross-site scripting vulnerability in n/a, published on 4 Oct 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Laravel Booking System Booking Core 2.0 is vulnerable to Cross Site Scripting (XSS). The Avatar upload in the My Profile section could be exploited to upload a malicious SVG file which contains Javascript. Now if another user/admin views the profile and clicks to view his avatar, an XSS will trigger.

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

## Which versions are affected by CVE-2021-37330?

It affects 1 product.


Products: Bookingcore Booking Core.

## How do I fix CVE-2021-37330?

No fix has been published for CVE-2021-37330 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-37330 being exploited?

There is no known exploitation of CVE-2021-37330 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-37333](https://insights.sbomify.com/CVE-2021-37333/): Security feature bypass in n/a (critical 9.8)
- [CVE-2020-25445](https://insights.sbomify.com/CVE-2020-25445/): Code injection in n/a (high 7.8)
- [CVE-2020-27379](https://insights.sbomify.com/CVE-2020-27379/): Cross-site request forgery in n/a (medium 6.5)
- [CVE-2020-25444](https://insights.sbomify.com/CVE-2020-25444/): Cross-site scripting in n/a (medium 5.4)
- [CVE-2021-37331](https://insights.sbomify.com/CVE-2021-37331/): Missing authorization in n/a (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-37330 and fix it if it is affected.

What it is: CVE-2021-37330 is a medium-severity cross-site scripting vulnerability in n/a, published on 4 Oct 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-37330 in the wild and no public exploit code.

Affected product: n/a. 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-2021-37330/ (Markdown: https://insights.sbomify.com/CVE-2021-37330/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-37330
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-37330
- OSV: https://osv.dev/vulnerability/CVE-2021-37330

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-37330/
Summaries are generated and may contain mistakes; the official description above is the record.