# CVE-2021-30650: Cross-site scripting in Layer7 API Management OAuth Toolkit (OTK)

> Remote attackers can inject malicious code into the OTK web UI via crafted URLs, potentially compromising user sessions and data.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Feb 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-x5vr-m7r7-gc58

## What is CVE-2021-30650?

CVE-2021-30650 is a medium-severity cross-site scripting vulnerability in Layer7 API Management OAuth Toolkit (OTK), published on 18 Feb 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A reflected cross-site scripting (XSS) vulnerability in the Symantec Layer7 API Management OAuth Toolkit (OTK) allows a remote attacker to craft a malicious URL for the OTK web UI and target OTK users with phishing attacks or other social engineering techniques. A successful attack allows injecting malicious code into the OTK web UI client application.

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

## Which versions are affected by CVE-2021-30650?

It affects 1 product.


Products: Broadcom Layer7 Api Management Oauth Toolkit.

## How do I fix CVE-2021-30650?

No fix has been published for CVE-2021-30650 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-30650 being exploited?

There is no known exploitation of CVE-2021-30650 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-30650 and fix it if it is affected.

What it is: CVE-2021-30650 is a medium-severity cross-site scripting vulnerability in Layer7 API Management OAuth Toolkit (OTK), published on 18 Feb 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-30650 in the wild and no public exploit code.

Affected product: Layer7 API Management OAuth Toolkit (OTK). 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-2021-30650/ (Markdown: https://insights.sbomify.com/CVE-2021-30650/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-30650
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-30650
- OSV: https://osv.dev/vulnerability/CVE-2021-30650

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-30650/
Summaries are generated and may contain mistakes; the official description above is the record.