CVE-2020-6637
openSIS Community Edition version 7.3 is vulnerable to SQL injection via the USERNAME parameter...
openSIS Community Edition version 7.3 is vulnerable to SQL injection via the USERNAME parameter of index.php.
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
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
openSIS Community Edition version 7.3 is vulnerable to SQL injection via the USERNAME parameter of index.php.
- Record
CVE-2020-6637- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-89
- Updated
- 2026-11-02
CVE List No score
openSIS Community Edition version 7.3 is vulnerable to SQL injection via the USERNAME parameter of index.php.
- Record
CVE-2020-6637- Updated
- 2026-11-02
EUVDEUVD-2020-27785 No score
openSIS Community Edition version 7.3 is vulnerable to SQL injection via the USERNAME parameter of index.php.
- Record
EUVD-2020-27785- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hvjm-9hmq-c635 No score
openSIS Community Edition version 7.3 is vulnerable to SQL injection via the USERNAME parameter...
openSIS Community Edition version 7.3 is vulnerable to SQL injection via the USERNAME parameter of index.php.
- Record
GHSA-hvjm-9hmq-c635- Updated
- 2026-11-02
OSV
openSIS Community Edition version 7.3 is vulnerable to SQL injection via the USERNAME parameter of index.php.
- Record
CVE-2020-6637- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | OpenSIS 7.3 - SQL Injection |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, Nuclei, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-6637 is a critical vulnerability (CVSS 9.8) in Os4ed Opensis, published August 24, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 17.6%, the 97th percentile. No source names a fixed version.