Unauthenticated Arbitrary File Upload in Hash Form Plugin by WordPress
CVE-2026-81780

10CRITICAL

Key Information:

Vendor

WordPress
Status
Hash Form
Vendor
CVE Published:
31 August 2026

What is CVE-2026-81780?

The Hash Form Plugin for WordPress, specifically versions up to 1.4.2, is vulnerable to an unauthenticated arbitrary file upload. This vulnerability allows attackers to upload malicious files without authentication, potentially compromising the security of the web application and leading to unauthorized access or data breaches.

Affected Version(s)

Hash Form <= 1.4.2

References

https://patchstack.com/database/wordpress/plugin/hash-for...
vdb-entry

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

CoryRoo | Patchstack Bug Bounty Program
.