Unrestricted File Upload Vulnerability in WP Chill Filr Plugin
CVE-2026-28133

8.1HIGH

Key Information:

Vendor

WordPress
Status
Filr
Vendor
CVE Published:
5 March 2026

What is CVE-2026-28133?

The WP Chill Filr plugin suffers from an unrestricted file upload vulnerability, allowing attackers to upload malicious files such as web shells to the server. This vulnerability affects versions up to and including 1.2.12 and poses a significant risk to the application's security, potentially enabling unauthorized access, remote code execution, and further exploitation of the affected web server.

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Affected Version(s)

Filr 0 <= 1.2.14

References

https://patchstack.com/database/Wordpress/Plugin/filr-pro...
vdb-entry

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Que Thanh Tuan | Patchstack Bug Bounty Program
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