What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-08-01 · updated 2026-06-17
• Weakness: CWE-639

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.

Affected products

• YOP Poll: before 6.4.3 — fixed in 6.4.3

How to fix

Upgrade to a fixed version: YOP Poll 6.4.3. Check the vendor advisory for mitigations.

References

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

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