CVE-2026-28133 HIGH

CVE-2026-28133: WordPress Filr plugin <= 1.2.14 - Arbitrary File Upload vulnerability

Vendor Wp Chill

Product Filr

Weakness CWE-434 · Unrestricted file upload

Published March 5, 2026

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

8.5/10

Attack vector Network

Attack complexity High

Privileges required Low

User interaction None

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

Description

Unrestricted Upload of File with Dangerous Type vulnerability in WP Chill Filr filr-protection allows Upload a Web Shell to a Web Server.This issue affects Filr: from n/a through <= 1.2.14.

Key dates

Disclosure timeline

March 5, 2026 CVE published

April 28, 2026 Record updated