CWE-639

High likelihood

Authorization Bypass Through User-Controlled Key

Parent: CWE-863 - Incorrect Authorization

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

1,777 vulnerabilities with CWE-639
CVE-2026-9493 MEDIUM
BankPro E-Service Technology|Service Center - Insecure Direct Object Reference
CVSS 6.5
CVE-2026-47713 LOW
AnythingLLM: Legacy mobile device tokens bypass multi-user workspace scoping after mode migration
CVSS 2.0
CVE-2026-45342 HIGH
LinkAce < 2.5.6 - Authenticated Insecure Direct Object Reference
CVE-2026-45297 MEDIUM
Cross-tenant IDOR on feature-flag and assist-stats routes via {project_id} case mismatch
CVE-2026-41160 MEDIUM
EspoCRM: Broken Access Control / IDOR in Note Pinning API allows unauthorized modification of notes
CVSS 4.3
CVE-2026-41141 MEDIUM
EspoCRM: IDOR in EmailTemplate Prepare Endpoint Leaks Entity Data via Email Address Lookup
CVSS 6.5
CVE-2026-7651 MEDIUM
User Registration & Membership < 5.1.5 - IDOR
CVSS 5.3
CVE-2026-3173 MEDIUM
Meta Field Block <= 1.5.1 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary User Meta Exposure
CVSS 6.5
CVE-2026-9241 MEDIUM
Fox – Currency Switcher Professional For WooCommerce < 1.4.6 - Authorization Bypass
CVSS 4.3
CVE-2026-9228 MEDIUM
Timetable And Event Schedule BY MotoPress < 2.4.16 - IDOR
CVSS 4.3
CVE-2026-46544 MEDIUM
Microsoft UFO reuses client-supplied WebSocket session IDs and replays stale task results to new authenticated requesters
CVSS 5.3
CVE-2026-46414 HIGH
Microsoft UFO WebSocket role spoofing allows authenticated peer task hijacking
CVSS 8.8
CVE-2026-4868 HIGH
Authorization Bypass Through User-Controlled Key in GitLab
CVSS 8.2
CVE-2026-38807 HIGH
kvf-admin 1.0.0 - Insecure Permissions Privilege Escalation via UserController.java
CVSS 8.8
CVE-2026-9712 LOW
pretix - Insecure Direct Object Reference
CVE-2026-42736 HIGH
WordPress BP Better Messages plugin <= 2.14.16 - Insecure Direct Object References (IDOR) vulnerability
CVSS 7.5
CVE-2026-42725 MEDIUM
WordPress Checkout Files Upload for WooCommerce plugin <= 2.2.5 - Insecure Direct Object References (IDOR) vulnerability
CVSS 6.5
CVE-2026-8890 HIGH
code100x Mobile API Authentication Bypass via Header Spoofing
CVSS 8.2
CVE-2026-44776 MEDIUM
Kavita: IDOR in /api/Download/*
CVE-2026-47716 LOW
Bugsink: Issue bulk actions can affect another project’s issue if its UUID is known
CVSS 3.1
CVE-2026-47715 LOW
Bugsink: Issue event views can show an event from another project if its UUID is known
CVSS 3.1
CVE-2026-43934 MEDIUM
e107: Broken Access Control in e107 comment edit allows cross-user comment modification
CVSS 6.5
CVE-2026-38587 MEDIUM
ONLYOFFICE DocSpace < 3.2.1 - Authenticated Insecure Direct Object Reference in REST API
CVSS 4.3
CVE-2026-40127 MEDIUM
Authorization Bypass Through User-Controlled Key in OutSystems Lifetime
CVE-2026-9306 LOW
QuantumNous new-api Midjourney Image Relay Endpoint relay-router.go GetByOnlyMJId authorization
CVSS 3.7
Details
Vulnerabilities 1,777
Exploit Likelihood High