CVE-2026-28133 Details
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.
A vulnerability allowing unrestricted upload of files with dangerous types has been identified in the WP Chill Filr plugin, specifically in versions through 1.2.12. This vulnerability could be exploited to upload a web shell to the server, potentially leading to unauthorized access or control over the website.
Patchstack has issued a mitigation rule to block any attacks until an official patch becomes available. Users can activate this mitigation through Patchstack.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Mar 5, 2026CISA-ADP
Assessed Mar 10, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-434 | Unrestricted Upload of File with Dangerous Type | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| WP Chill Filr | All versions |
CPE
Remediation
| |
Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 28, 2026 | CVE Modified | CISA-ADP |
| Apr 28, 2026 | CVE Modified | [email protected] |
| Apr 1, 2026 | CVE Modified | [email protected] |
| Mar 11, 2026 | CVE Modified | CISA-ADP |
| Mar 5, 2026 | New CVE Received | [email protected] |