# CVE-2021-35337: Information disclosure in n/a

> Attackers can view other users' invoices by manipulating the ID parameter in the Phone Shop Sales Management System.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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:** 1 Jul 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-qr79-4qwm-2cwc

## What is CVE-2021-35337?

CVE-2021-35337 is a medium-severity vulnerability in n/a, published on 1 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Sourcecodester Phone Shop Sales Managements System 1.0 is vulnerable to Insecure Direct Object Reference (IDOR). Any attacker will be able to see the invoices of different users by changing the id parameter.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2021-35337?

It affects 1 product.


Products: Phone Shop Sales Management System Project Phone Shop Sales Management System.

## How do I fix CVE-2021-35337?

No fix has been published for CVE-2021-35337 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-35337 being exploited?

There is no known exploitation of CVE-2021-35337 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-36560](https://insights.sbomify.com/CVE-2021-36560/): Auth bypass in n/a (critical 9.8)
- [CVE-2021-36623](https://insights.sbomify.com/CVE-2021-36623/): File upload in n/a (critical 9.8)
- [CVE-2021-36624](https://insights.sbomify.com/CVE-2021-36624/): SQL injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-35337 and fix it if it is affected.

What it is: CVE-2021-35337 is a medium-severity vulnerability in n/a, published on 1 Jul 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-2021-35337 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-2021-35337/ (Markdown: https://insights.sbomify.com/CVE-2021-35337/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-35337
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-35337
- OSV: https://osv.dev/vulnerability/CVE-2021-35337

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-35337/
Summaries are generated and may contain mistakes; the official description above is the record.