CVE-2026-12686: 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 envir
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-12686
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-126860.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 23% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-12686 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for An authenticated user
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- unknownCVE-2026-57828: The Joomla extension Phoca Downloads is vulnerable to an authenticated arbitrary file upload t…nvd · 2026-07-11
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- highCVE-2026-55460: Snipe-IT is an IT asset/license management system. Prior to 8.6.2, an authenticated non-admin …nvd · 2026-07-10
- mediumCVE-2025-30008: HestiaCP before 1.9.5 contains a stored cross-site scripting vulnerability that allows authent…nvd · 2026-07-10
- highCVE-2025-30007: HestiaCP before 1.9.5 contains an authenticated OS command injection vulnerability that allows…nvd · 2026-07-10
- mediumCVE-2026-59193: Grav is a file-based Web platform. Prior to 2.0.0, an authenticated admin.super user can crash…nvd · 2026-07-10
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