CVE-2026-12686CWE-639

Incorrect authorisation in Adiss’s Biloop

Critical · published July 6, 2026

CVSS v4.0
9.3
EPSS
0%
Percentile
30.0
In the wild
Unconfirmed
What it is

An authenticated user could manipulate a company ID parameter in a POST request to the backend to gain unauthorised access to other companies hosted within the same subdomain environment. The application does not adequately verify whether the requested company ID belongs to the authenticated user’s session, resulting in a cross-tenant authorisation bypass. If this vulnerability is successfully exploited, it allows unauthorised access to sensitive customer information, including billing data, and may enable the unauthorised modification of third-party data.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:N
EPSS
0.00372 · 30.0th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-07-06T08:48Z
EPSS history
Timeline
  • 06 JUL 08:48Z
    Incorrect authorisation in Adiss’s Biloop
    cvelistv5