# CVE-2021-31583: Cross-site scripting in n/a

> Authenticated attackers can inject malicious scripts via unsanitized parameters in the Sipwise C5 NGCP web admin interface, potentially leading to session hijacking or code execution.

- **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:** 23 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-3jj3-875w-p3wj

## What is CVE-2021-31583?

CVE-2021-31583 is a medium-severity cross-site scripting vulnerability in n/a, published on 23 Apr 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

Sipwise C5 NGCP WWW Admin version 3.6.7 up to and including platform version NGCP CE 3.0 has multiple authenticated stored and reflected XSS vulnerabilities when input passed via several parameters to several scripts is not properly sanitized before being returned to the user: Stored XSS in callforward/time/set/save (POST tsetname); Reflected XSS in addressbook (GET filter); Stored XSS in addressbook/save (POST firstname, lastname, company); and Reflected XSS in statistics/versions (GET lang).

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

## Which versions are affected by CVE-2021-31583?

It affects 1 product.


Products: Sipwise Next Generation Communication Platform.

## How do I fix CVE-2021-31583?

No fix has been published for CVE-2021-31583 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-31583 being exploited?

There is no known exploitation of CVE-2021-31583 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-31584](https://insights.sbomify.com/CVE-2021-31584/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2024-28345](https://insights.sbomify.com/CVE-2024-28345/): Missing authorization in n/a (medium 5.5)
- [CVE-2024-28344](https://insights.sbomify.com/CVE-2024-28344/): Open redirect in n/a (low 3.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-31583 and fix it if it is affected.

What it is: CVE-2021-31583 is a medium-severity cross-site scripting vulnerability in n/a, published on 23 Apr 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-2021-31583 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-2021-31583/ (Markdown: https://insights.sbomify.com/CVE-2021-31583/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-31583
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-31583
- OSV: https://osv.dev/vulnerability/CVE-2021-31583

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-31583/
Summaries are generated and may contain mistakes; the official description above is the record.