CVE-2026-66570: high-severity vulnerability in Nickboss WordPress File Upload
WordPress WordPress File Upload plugin <= 5.2.1 - Cross Site Scripting (XSS) vulnerability
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.2%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Affected products
Nickboss · WordPress File UploadRelated CVEs — Nickboss WordPress File Upload
In the same product, most dangerous first.