# CVE-2025-63419: Cross-site scripting in n/a

> An attacker can inject malicious HTML into email bodies via unsanitized filenames in the file sharing feature, potentially compromising user sessions.

- **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:** 12 Nov 2025
- **Updated:** 12 Nov 2025
- **Also known as:** GHSA-xrhm-vphq-6rxx

## What is CVE-2025-63419?

CVE-2025-63419 is a medium-severity cross-site scripting vulnerability in n/a, published on 12 Nov 2025. 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

Cross Site Scripting (XSS) vulnerability in CrushFTP 11.3.6_48. The Web-Based Server has a feature where users can share files, the feature reflects the filename to an emailbody field with no sanitations leading to HTML Injection.

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

## Which versions are affected by CVE-2025-63419?

It affects 1 product.


Products: Crushftp Crushftp.

## How do I fix CVE-2025-63419?

No fix has been published for CVE-2025-63419 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-63419 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63419 exists.

Public exploit code:

- CrushFTP before 11.3.7_60 is vulnerable to HTML Injection. The Web-Based Server has a feature where users can share files, the feature reflects the filename to an emailbody field with no sanitzations leading to HTML Injection. (github_poc): https://github.com/MMAKINGDOM/CVE-2025-63419
- https://github.com/hossainshadat/CVE-2025-63419 (github_poc): https://github.com/hossainshadat/CVE-2025-63419

## Other vulnerabilities in n/a

- [CVE-2025-31161](https://insights.sbomify.com/CVE-2025-31161/): CrushFTP Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2024-4040](https://insights.sbomify.com/CVE-2024-4040/): CrushFTP VFS Sandbox Escape (critical 9.8, exploited in the wild)
- [CVE-2025-54309](https://insights.sbomify.com/CVE-2025-54309/): CrushFTP Unprotected Alternate Channel (critical 9.0, exploited in the wild)
- [CVE-2024-53552](https://insights.sbomify.com/CVE-2024-53552/): Auth bypass in n/a (critical 9.8)
- [CVE-2023-43177](https://insights.sbomify.com/CVE-2023-43177/): Deserialization in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-63419 and fix it if it is affected.

What it is: CVE-2025-63419 is a medium-severity cross-site scripting vulnerability in n/a, published on 12 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63419 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-2025-63419/ (Markdown: https://insights.sbomify.com/CVE-2025-63419/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-63419
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-63419
- OSV: https://osv.dev/vulnerability/CVE-2025-63419

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-63419/
Summaries are generated and may contain mistakes; the official description above is the record.