# CVE-2019-19551: Cross-site scripting in n/a

> An attacker with User Control Panel access can inject malicious scripts into user profile fields, leading to XSS execution when admins view the User Management screen.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 6 Dec 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-7hj4-pc8w-w4xp

## What is CVE-2019-19551?

CVE-2019-19551 is a medium-severity cross-site scripting vulnerability in Sangoma Freepbx, published on 6 Dec 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

In userman 13.0.76.43 through 15.0.20 in Sangoma FreePBX, XSS exists in the User Management screen of the Administrator web site. An attacker with access to the User Control Panel application can submit malicious values in some of the time/date formatting and time-zone fields. These fields are not being properly sanitized. If this is done and a user (such as an admin) visits the User Management screen and views that user's profile, the XSS payload will render and execute in the context of the victim user's account.

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

## Which versions are affected by CVE-2019-19551?

It affects 1 product.


Products: Sangoma Freepbx.

## How do I fix CVE-2019-19551?

No fix has been published for CVE-2019-19551 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-19551 being exploited?

There is no known exploitation of CVE-2019-19551 in the wild and no public exploit code.

## Other vulnerabilities in Sangoma Freepbx

- [CVE-2025-57819](https://insights.sbomify.com/CVE-2025-57819/): Sangoma FreePBX Authentication Bypass (critical 10.0, exploited in the wild)
- [CVE-2019-19006](https://insights.sbomify.com/CVE-2019-19006/): Sangoma FreePBX Improper Authentication (critical 9.8, exploited in the wild)
- [CVE-2026-73663](https://insights.sbomify.com/CVE-2026-73663/): FreePBX: Unauthenticated SQL injection in FreePBX missedcall via inbound Caller ID name leads to administrator takeover (critical 9.3)
- [CVE-2026-73665](https://insights.sbomify.com/CVE-2026-73665/): FreePBX UCP: Unauthenticated remote code execution via socket.io namespace auth bypass and AMI action injection (critical 9.3)
- [CVE-2026-46376](https://insights.sbomify.com/CVE-2026-46376/): FreePBX: Unauthenticated Use of Hard-Coded Credentials Vulnerability in FreePBX UCP Interface (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-19551 and fix it if it is affected.

What it is: CVE-2019-19551 is a medium-severity cross-site scripting vulnerability in Sangoma Freepbx, published on 6 Dec 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-19551 in the wild and no public exploit code.

Affected product: Sangoma Freepbx. 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-2019-19551/ (Markdown: https://insights.sbomify.com/CVE-2019-19551/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-19551
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-19551
- OSV: https://osv.dev/vulnerability/CVE-2019-19551

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-19551/
Summaries are generated and may contain mistakes; the official description above is the record.