CVE-2020-5724
The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the HTTP...
The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the HTTP server's websockify endpoint. A remote unauthenticated attacker can invoke the challenge action with a crafted username and discover user passwords.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the HTTP server's websockify endpoint. A remote unauthenticated attacker can invoke the challenge action with a crafted username and discover user passwords.
- Record
CVE-2020-5724- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-89
- Updated
- 2026-11-02
CVE List No score
The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the HTTP server's websockify endpoint. A remote unauthenticated attacker can invoke the challenge action with a crafted username and discover user passwords.
- Record
CVE-2020-5724- Weakness
- CWE-89
- Updated
- 2026-11-02
EUVDEUVD-2020-26883 No score
The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the HTTP server's websockify endpoint. A remote unauthenticated attacker can invoke the challenge action with a crafted username and discover user passwords.
- Record
EUVD-2020-26883- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p4p6-qxv3-3wvj No score
The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the HTTP...
The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the HTTP server's websockify endpoint. A remote unauthenticated attacker can invoke the challenge action with a crafted username and discover user passwords.
- Record
GHSA-p4p6-qxv3-3wvj- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Metasploit | Grandstream UCM62xx IP PBX WebSocket Blind SQL Injection Credential Dump | 2020-03-30 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, Metasploit, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-5724 is a high vulnerability (CVSS 7.5) in Grandstream Ucm6202 Firmware, published March 30, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 12.2%, the 96th percentile. No source names a fixed version.