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PatchSiren cyber security CVE debrief

CVE-2016-20066 dwbooster CVE debrief

CVE-2016-20066 is a persistent cross-site scripting (XSS) vulnerability in WordPress CP Polls 1.0.8. The vulnerability 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. The CVSS score for this vulnerability is 5.1, indicating a medium severity.

Vendor
dwbooster
Product
CP Polls
CVSS
MEDIUM 5.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-15
Original CVE updated
2026-06-15
Advisory published
2026-06-15
Advisory updated
2026-06-15

Who should care

Users of WordPress CP Polls 1.0.8 should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The vulnerability is caused by unsanitized file uploads in WordPress CP Polls 1.0.8. Attackers can exploit this vulnerability by uploading malicious files with script payloads, which can then be executed in the browsers of users viewing the affected content.

Defensive priority

Medium

Recommended defensive actions

  • Update to a patched version of WordPress CP Polls, if available.
  • Implement additional security measures, such as input validation and sanitization, to prevent similar vulnerabilities.

Evidence notes

The CVE record for CVE-2016-20066 was obtained from the official CVE website [cve-org]. Additional information was obtained from the National Vulnerability Database [nvd] and source references [ref-4], [ref-5].

Sources and references

Verified primary and authoritative sources

  • CVE-2016-20066 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2016-20066

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2016-20066 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2016-20066

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.