CVE-2016-20066 WordPress CP Polls 1.0.8 Persistent Cross-Site Scripting

Medium 5.1 Published Updated

Attackers can inject malicious scripts via unsanitized file uploads in the CP Polls WordPress plugin, leading to arbitrary JavaScript execution in victim browsers.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2016-20066?

CVE-2016-20066 is a medium-severity cross-site scripting vulnerability in dwbooster CP Polls, published on 15 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

WordPress CP Polls 1.0.8 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts through unsanitized file upload functionality. Attackers can upload files containing script payloads with event handlers like onerror attributes to execute arbitrary JavaScript in the browsers of users viewing the affected content.

Weakness: CWE-79

Which versions are affected by CVE-2016-20066?

How do I fix CVE-2016-20066?

No fix has been published for CVE-2016-20066 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2016-20066 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20066 exists.

Sources

Also known as GHSA-gm2p-w58f-v4q2.

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