CVE-2026-84254CWE-862broken-access-control

CVE-2026-84254

Critical · published October 11, 2026

CVSS v3.1
9.8
EPSS
0%
Percentile
7.7
In the wild
Unconfirmed
What it is

The click5 CRM add-on to Contact Form 7 WordPress plugin through 1.0.4 does not have authorisation and CSRF checks when updating options via a REST endpoint, and does not ensure that the option to be updated belongs to the click5 CRM add-on to Contact Form 7 WordPress plugin through 1.0.4. As a result, unauthenticated attackers could change arbitrary blog options, allowing them to create a new administrator account and take over the site.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00185 · 7.7th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-10-11T11:17Z
References (1)
https://wpscan.com/vulnerability/1dbb03eb-97ba-4a0f-aeea-6a38a47c95e5/ · [email protected]
EPSS history
Timeline
  • 12 OCT 03:31Z
    EPSS moved — → 0%
    epss
  • 11 OCT 06:00Z
    click5 CRM add-on to Contact Form 7 <= 1.0.4 - Unauthenticated Arbitrary Options Update
    cvelistv5
  • 11 OCT 06:00Z
    click5 CRM add-on to Contact Form 7 <= 1.0.4 - Unauthenticated Arbitrary Options Update
    cvelistv5