Public vulnerability disclosure

CVE-2026-66570

publishedCWE-79

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.

Investigate in Cyber JSON Markdown

Technical severity7.1 highCVSS 3.1 · NVD: [email protected]

Published2026-11-01Source updated 2026-11-01

Collected2026-11-021 attributed source

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

No affected-product ranges reported in collected sources.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
3.1 / 7.1 high	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L`	NVD: [email protected]

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[email protected]