CVE-2019-19552 Cross-site scripting in n/a
An attacker with privileges can inject malicious scripts into user display names, leading to XSS execution when admins view the user management screen.
- 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
- None listed
What is CVE-2019-19552?
CVE-2019-19552 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, i.e., the/admin/config.php?display=userman URI. An attacker with sufficient privileges can edit the Display Name of a user and embed malicious XSS code. When another user (such as an admin) visits the main User Management screen, the XSS payload will render and execute in the context of the victim user's account.
Weakness: CWE-79
Which versions are affected by CVE-2019-19552?
It affects 1 product.
Products include Sangoma Freepbx.
How do I fix CVE-2019-19552?
No fix has been published for CVE-2019-19552 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2019-19552 being exploited?
There is no known exploitation of CVE-2019-19552 in the wild and no public exploit code.
Other vulnerabilities in Sangoma Freepbx
- CVE-2025-57819 Sangoma FreePBX Authentication Bypass
- CVE-2019-19006 Sangoma FreePBX Improper Authentication
- CVE-2026-73663 FreePBX: Unauthenticated SQL injection in FreePBX missedcall via inbound Caller ID name leads to administrator takeover
- CVE-2026-73665 FreePBX UCP: Unauthenticated remote code execution via socket.io namespace auth bypass and AMI action injection
- CVE-2026-46376 FreePBX: Unauthenticated Use of Hard-Coded Credentials Vulnerability in FreePBX UCP Interface
Sources
Also known as GHSA-99cq-f6jc-fq66.