# CVE-2026-66570: CVE-2026-66570

Status: published. Published: 2026-11-01. Updated: 2026-11-01.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Nickboss WordPress File Upload wp-file-upload allows Stored XSS.This issue affects WordPress File Upload: from n/a through 5.2.1.

## Remediation

No remediation reported in collected sources

## Affected products and versions

Not reported in collected sources.

## Severity and prioritization

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L; source: NVD: audit@patchstack.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation none; automatable no; technical impact partial; source NVD SSVC: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- Weaknesses: CWE-79

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://patchstack.com/database/wordpress/plugin/wp-file-upload/vulnerability/wordpress-wordpress-file-upload-plugin-5-2-1-cross-site-scripting-xss-vulnerability?_s_id=cve (audit@patchstack.com)

## Provenance

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-66570; retrieved 2026-11-02; source updated 2026-11-01

Revision: cd407897217f37bcdfc761f0775cc80e0ccc6df9902e0079713e8ad5f07435ca

Canonical: https://y2.dev/cve/CVE-2026-66570