CVE-2026-81780CWE-434unrestricted-file-upload

CVE-2026-81780

Critical · published September 1, 2026

CVSS v3.1
10.0
EPSS
1%
Percentile
43.4
In the wild
Unconfirmed
What it is

Unauthenticated Arbitrary File Upload in Hash Form <= 1.4.2 versions.

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00522 · 43.4th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-09-01T01:17Z
References (1)
https://patchstack.com/database/wordpress/plugin/hash-form/vulnerability/wordpress-hash-form-plugin-1-4-2-arbitrary-file-upload-vulnerability?_s_id=cve · [email protected]
EPSS history
Timeline
  • 02 SEP 03:39Z
    EPSS moved — → 0%
    epss
  • 31 AUG 20:30Z
    WordPress Hash Form plugin <= 1.4.2 - Arbitrary File Upload vulnerability
    cvelistv5