CVE-2026-48086: CWE-269: Improper Privilege Management in open-reception appointment-booking-software
CVE-2026-48086 is a critical privilege escalation vulnerability in OpenReception's appointment booking software prior to version 1.0.2. A tenant administrator (TENANT_ADMIN) can promote themselves or another tenant staff member to platform-wide GLOBAL_ADMIN via a single PUT request due to lack of proper authorization checks. This allows full administrative control over all tenants on the platform, including configuration, users, and tenant lifecycle management. The issue is fixed in version 1.0.2.
AI Analysis
Technical Summary
OpenReception appointment booking software versions before 1.0.2 contain an improper privilege management vulnerability (CWE-269) where the role-update handler accepts a GLOBAL_ADMIN role assignment from any tenant admin without verifying that the requester is already a GLOBAL_ADMIN. This flaw allows a TENANT_ADMIN to escalate privileges to GLOBAL_ADMIN, gaining full platform-wide administrative access across all tenants. The vulnerability affects both hosted multi-tenant deployments and single-tenant self-hosted deployments, enabling unauthorized creation of tenants, modification of global configuration, and management of other administrators. The vulnerability is resolved in version 1.0.2.
Potential Impact
An attacker with tenant administrator privileges can escalate to GLOBAL_ADMIN, gaining full administrative control over all tenants on the platform. This includes access to configuration, user and staff records, operational metadata, and tenant lifecycle management. While appointment contents remain end-to-end encrypted, the attacker can compromise platform-wide settings and user management. This represents a critical confidentiality, integrity, and availability impact.
Mitigation Recommendations
Upgrade OpenReception appointment booking software to version 1.0.2 or later, where this privilege escalation vulnerability is fixed. No other mitigation is indicated. Patch status is not explicitly stated but the issue is resolved in version 1.0.2, so upgrading to this version or newer is the recommended remediation.
CVE-2026-48086: CWE-269: Improper Privilege Management in open-reception appointment-booking-software
Description
CVE-2026-48086 is a critical privilege escalation vulnerability in OpenReception's appointment booking software prior to version 1.0.2. A tenant administrator (TENANT_ADMIN) can promote themselves or another tenant staff member to platform-wide GLOBAL_ADMIN via a single PUT request due to lack of proper authorization checks. This allows full administrative control over all tenants on the platform, including configuration, users, and tenant lifecycle management. The issue is fixed in version 1.0.2.
CVSS v3.1
Score 9.9critical
Affected software
open-reception
appointment-booking-software
pkg:github/open-reception/appointment-booking-softwareRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
OpenReception appointment booking software versions before 1.0.2 contain an improper privilege management vulnerability (CWE-269) where the role-update handler accepts a GLOBAL_ADMIN role assignment from any tenant admin without verifying that the requester is already a GLOBAL_ADMIN. This flaw allows a TENANT_ADMIN to escalate privileges to GLOBAL_ADMIN, gaining full platform-wide administrative access across all tenants. The vulnerability affects both hosted multi-tenant deployments and single-tenant self-hosted deployments, enabling unauthorized creation of tenants, modification of global configuration, and management of other administrators. The vulnerability is resolved in version 1.0.2.
Potential Impact
An attacker with tenant administrator privileges can escalate to GLOBAL_ADMIN, gaining full administrative control over all tenants on the platform. This includes access to configuration, user and staff records, operational metadata, and tenant lifecycle management. While appointment contents remain end-to-end encrypted, the attacker can compromise platform-wide settings and user management. This represents a critical confidentiality, integrity, and availability impact.
Mitigation Recommendations
Upgrade OpenReception appointment booking software to version 1.0.2 or later, where this privilege escalation vulnerability is fixed. No other mitigation is indicated. Patch status is not explicitly stated but the issue is resolved in version 1.0.2, so upgrading to this version or newer is the recommended remediation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-20T18:40:45.833Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a750706bf8831d5395f5a8a
Added to database: 08/06/2026, 22:13:26 UTC
Last enriched: 08/14/2026, 16:15:53 UTC
Last updated: 09/18/2026, 02:07:17 UTC
Views: 46
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.