CVE-2026-12686: CWE-639 Authorization bypass through User-Controlled key in Adiss Biloop
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-12686) in Adiss Biloop 6.1.1 involves improper authorization checks (CWE-639) where the backend does not validate that the company ID parameter in a POST request corresponds to the authenticated user's session. This flaw allows an authenticated user to bypass tenant isolation controls and access or modify data belonging to other companies hosted on the same subdomain environment. The CVSS 4.0 score of 9.3 reflects the critical nature of this vulnerability with network attack vector, low attack complexity, no user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation grants unauthorized access to sensitive customer data, including billing information, across tenant boundaries. It also allows unauthorized modification of data belonging to other companies within the same hosting environment. This compromises data confidentiality and integrity, potentially leading to significant business and privacy impacts.
Mitigation Recommendations
No official patch or remediation is currently available for this vulnerability. Users of Adiss Biloop version 6.1.1 should monitor vendor advisories for updates. Until a fix is released, restrict access to the application to trusted users only and consider additional access controls or network segmentation to limit exposure. Verify company ID parameters on the server side as a temporary mitigation if possible.
CVE-2026-12686: CWE-639 Authorization bypass through User-Controlled key in Adiss Biloop
Description
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.
CVSS v4.0
Score 9.3critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-12686) in Adiss Biloop 6.1.1 involves improper authorization checks (CWE-639) where the backend does not validate that the company ID parameter in a POST request corresponds to the authenticated user's session. This flaw allows an authenticated user to bypass tenant isolation controls and access or modify data belonging to other companies hosted on the same subdomain environment. The CVSS 4.0 score of 9.3 reflects the critical nature of this vulnerability with network attack vector, low attack complexity, no user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation grants unauthorized access to sensitive customer data, including billing information, across tenant boundaries. It also allows unauthorized modification of data belonging to other companies within the same hosting environment. This compromises data confidentiality and integrity, potentially leading to significant business and privacy impacts.
Mitigation Recommendations
No official patch or remediation is currently available for this vulnerability. Users of Adiss Biloop version 6.1.1 should monitor vendor advisories for updates. Until a fix is released, restrict access to the application to trusted users only and consider additional access controls or network segmentation to limit exposure. Verify company ID parameters on the server side as a temporary mitigation if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- INCIBE
- Date Reserved
- 2026-06-19T08:38:05.732Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4b81c327e9c797194eed1f
Added to database: 07/06/2026, 10:21:55 UTC
Last enriched: 07/06/2026, 10:37:06 UTC
Last updated: 07/06/2026, 17:40:06 UTC
Views: 29
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