# CVE-2025-63416: Cross-site scripting in n/a

> Authenticated attackers can inject scripts into chat to escalate privileges and exfiltrate sensitive administrative data from the SelfBest platform.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Nov 2025
- **Updated:** 5 Nov 2025
- **Also known as:** GHSA-7gqw-xrp6-92rg

## What is CVE-2025-63416?

CVE-2025-63416 is a critical cross-site scripting vulnerability in n/a, published on 5 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

** exclusively-hosted-service ** A Stored Cross-Site Scripting (XSS) vulnerability in the chat functionality of the SelfBest platform 2023.3 allows authenticated low-privileged attackers to execute arbitrary JavaScript in the context of other users' sessions. This can be exploited to access administrative data and functions, leading to privilege escalation and full compromise of sensitive user data, as demonstrated by the ability to fetch and exfiltrate the contents of the /admin/users endpoint.

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

## Which versions are affected by CVE-2025-63416?

It affects 1 product.


Products: Selfbest Selfbest.

## How do I fix CVE-2025-63416?

No fix has been published for CVE-2025-63416 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-63416 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63416 exists.

## Other vulnerabilities in n/a

- [CVE-2025-63417](https://insights.sbomify.com/CVE-2025-63417/): Cross-site scripting in n/a (high 7.2)
- [CVE-2025-63418](https://insights.sbomify.com/CVE-2025-63418/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-63416 and fix it if it is affected.

What it is: CVE-2025-63416 is a critical cross-site scripting vulnerability in n/a, published on 5 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63416 exists.

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-2025-63416/ (Markdown: https://insights.sbomify.com/CVE-2025-63416/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-63416
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-63416
- OSV: https://osv.dev/vulnerability/CVE-2025-63416

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-63416/
Summaries are generated and may contain mistakes; the official description above is the record.