YOP Poll trusts spoofable forwarding headers for vote limits
YOP Poll before 7.0.6 uses client-controlled forwarding headers as the voter's origin address when enforcing its per-IP restriction. An unauthenticated visitor can change the supplied address between requests and cast unlimited votes on a public poll.
- Component
- YOP Poll
- Plugin slug
yop-poll- Affected
- 7.0.0 to < 7.0.6
- Safe version
7.0.6- Published
- Aug 01, 2026
This CVE was published Aug 01, 2026 and is one of 12 known issues for this plugin.
Update, patch or deactivate.
Update YOP Poll to 7.0.6 or later. Review high-volume polling activity and repeated votes with changing forwarding-header values, discard manipulated results where practical, and rerun consequential polls after correcting the plugin.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The YOP Poll WordPress plugin before 7.0.6 does not validate the connection's origin IP address and instead trusts client-controlled forwarding headers when enforcing its per-IP vote restriction, allowing unauthenticated attackers to bypass the vote limit and cast unlimited votes on a public poll.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N