Common Weakness Enumeration
CWE-639
AllowedAuthorization Bypass Through User-Controlled Key
Abstraction: Base · Status: Incomplete
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.
3255 vulnerabilities reference this CWE, most recent first.
CVE-2026-5842 (GCVE-0-2026-5842)
Vulnerability from cvelistv5 – Published: 2026-04-09 04:30 – Updated: 2026-04-13 19:59
VLAI
EPSS
VEX
Title
decolua 9router Administrative API Endpoint api authorization
Summary
A security vulnerability has been detected in decolua 9router up to 0.3.47. The impacted element is an unknown function of the file /api of the component Administrative API Endpoint. The manipulation leads to authorization bypass. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 0.3.75 is sufficient to resolve this issue. It is suggested to upgrade the affected component.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/356298 | vdb-entry |
| https://vuldb.com/vuln/356298/cti | signaturepermissions-required |
| https://vuldb.com/submit/790003 | third-party-advisory |
| https://github.com/decolua/9router/issues/431 | issue-tracking |
| https://github.com/decolua/9router/issues/431#iss… | issue-tracking |
| https://github.com/deepcat1337/Free_Api_Exploit/t… | exploit |
| https://github.com/decolua/9router/releases/tag/v0.3.75 | patch |
| https://github.com/decolua/9router/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| decolua | 9router |
Affected:
0.3.0
Affected: 0.3.1 Affected: 0.3.2 Affected: 0.3.3 Affected: 0.3.4 Affected: 0.3.5 Affected: 0.3.6 Affected: 0.3.7 Affected: 0.3.8 Affected: 0.3.9 Affected: 0.3.10 Affected: 0.3.11 Affected: 0.3.12 Affected: 0.3.13 Affected: 0.3.14 Affected: 0.3.15 Affected: 0.3.16 Affected: 0.3.17 Affected: 0.3.18 Affected: 0.3.19 Affected: 0.3.20 Affected: 0.3.21 Affected: 0.3.22 Affected: 0.3.23 Affected: 0.3.24 Affected: 0.3.25 Affected: 0.3.26 Affected: 0.3.27 Affected: 0.3.28 Affected: 0.3.29 Affected: 0.3.30 Affected: 0.3.31 Affected: 0.3.32 Affected: 0.3.33 Affected: 0.3.34 Affected: 0.3.35 Affected: 0.3.36 Affected: 0.3.37 Affected: 0.3.38 Affected: 0.3.39 Affected: 0.3.40 Affected: 0.3.41 Affected: 0.3.42 Affected: 0.3.43 Affected: 0.3.44 Affected: 0.3.45 Affected: 0.3.46 Affected: 0.3.47 Unaffected: 0.3.75 |
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CVE-2026-5799 (GCVE-0-2026-5799)
Vulnerability from cvelistv5 – Published: 2026-07-07 06:49 – Updated: 2026-07-07 13:26
VLAI
EPSS
VEX
Title
IDOR in Idvlabs' Ontime
Summary
Authorization bypass through User-Controlled key vulnerability in Idvlabs Software and Consulting Services Inc. Ontime allows Exploitation of Trusted Identifiers.
This issue affects Ontime: through 04052026.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://siberguvenlik.gov.tr/guvenlik-bildirimler… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Idvlabs Software and Consulting Services Inc. | Ontime |
Affected:
0 , ≤ 04052026
(custom)
|
Date Public
2026-07-07 06:46
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CVE-2026-5798 (GCVE-0-2026-5798)
Vulnerability from cvelistv5 – Published: 2026-05-14 12:26 – Updated: 2026-05-14 13:48
VLAI
EPSS
VEX
Title
Unsafe Object Reference (IDOR) vulnerability in Stel Order
Summary
Unsafe object reference (IDOR) in Stel Order v3.25.1 and earlier versions, specifically in the ‘/app/FrontController’ endpoint, through manipulation of the ‘employeeID’ parameter. An authenticated attacker could exploit this vulnerability to access information about any employee (first names, last names, roles, job titles, and vacation records, among others) by modifying that identifier in requests sent to the server.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Stel Order | Stel Order |
Affected:
0 , ≤ 3.25.1
(custom)
|
Date Public
2026-05-14 10:00
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CVE-2026-5750 (GCVE-0-2026-5750)
Vulnerability from cvelistv5 – Published: 2026-04-22 13:25 – Updated: 2026-04-22 13:59
VLAI
EPSS
VEX
Title
Insecure direct object reference (IDOR) vulnerability in Fullstep
Summary
An insecure direct object reference (IDOR) vulnerability in the Fullstep V5 registration process allows authenticated users to access data belonging to other registered users through various vulnerable authenticated resources in the application. The vulnerable endpoints result from: '/api/suppliers/v1/suppliers//false' to list user information; and '/#/supplier-registration/supplier-registration//2' to update your user information (personal details, documents, etc.).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.incibe.es/en/incibe-cert/notices/avis… | patch |
Impacted products
Date Public
2026-04-20 10:00
Credits
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CVE-2026-5730 (GCVE-0-2026-5730)
Vulnerability from cvelistv5 – Published: 2026-07-07 06:45 – Updated: 2026-07-07 13:25
VLAI
EPSS
VEX
Title
IDOR in Idvlabs' Ontime
Summary
Authorization bypass through User-Controlled key vulnerability in Idvlabs Software and Consulting Services Inc. Ontime allows Exploitation of Trusted Identifiers.
This issue affects Ontime: through 04052026.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://siberguvenlik.gov.tr/guvenlik-bildirimler… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Idvlabs Software and Consulting Services Inc. | Ontime |
Affected:
0 , ≤ 04052026
(custom)
|
Date Public
2026-07-07 06:39
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CVE-2026-5652 (GCVE-0-2026-5652)
Vulnerability from cvelistv5 – Published: 2026-04-21 16:33 – Updated: 2026-04-21 17:22
VLAI
EPSS
VEX
Title
Authorization Bypass Through User-Controlled Key in Crafty Controller
Summary
An insecure direct object reference vulnerability in the Users API component of Crafty Controller allows a remote, authenticated attacker to perform user modification actions via improper API permissions validation.
Severity
9 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Arcadia Technology, LLC | Crafty Controller |
Affected:
0 , ≤ 4.10.2
(semver)
|
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CVE-2026-5617 (GCVE-0-2026-5617)
Vulnerability from cvelistv5 – Published: 2026-04-15 07:45 – Updated: 2026-04-15 16:13
VLAI
EPSS
VEX
Title
Login as User <= 1.0.3 - Authenticated (Subscriber+) Privilege Escalation via 'oclaup_original_admin' Cookie
Summary
The Login as User plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.0.3. This is due to the handle_return_to_admin() function trusting a client-controlled cookie (oclaup_original_admin) to determine which user to authenticate as, without any server-side verification that the cookie value was legitimately set during an admin-initiated user switch. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate their privileges to administrator by setting the oclaup_original_admin cookie to an administrator's user ID and triggering the "Return to Admin" functionality.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| royalnavneet | Login as User – Switch User & WooCommerce Login as Customer |
Affected:
0 , ≤ 1.0.1
(semver)
|
Credits
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CVE-2026-5523 (GCVE-0-2026-5523)
Vulnerability from cvelistv5 – Published: 2026-07-09 04:32 – Updated: 2026-07-09 12:52
VLAI
EPSS
VEX
Title
Divi Form Builder <= 5.1.8 - Authenticated (Subscriber+) Missing Authorization to Privilege Escalation via User Profile Update Form
Summary
The Divi Form Builder plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 5.1.8. This is due to the update_user() function accepting a user ID parameter from form submissions without verifying that the authenticated user has permission to edit that specific user account, and the handle_register_submission() function only checking if any user is logged in rather than validating permissions for the target user. This makes it possible for authenticated attackers, with subscriber-level access and above, to change the email address and password of any user account, including administrators, resulting in complete account takeover.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Divi Engine | Divi Form Builder |
Affected:
0 , ≤ 5.1.8
(semver)
|
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CVE-2026-5465 (GCVE-0-2026-5465)
Vulnerability from cvelistv5 – Published: 2026-04-07 06:43 – Updated: 2026-04-08 17:12
VLAI
EPSS
VEX
Title
Amelia <= 2.1.3 - Insecure Direct Object Reference to Authenticated (Employee+) Privilege Escalation via 'externalId' Parameter
Summary
The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.1.3. This is due to the `UpdateProviderCommandHandler` failing to validate changes to the `externalId` field when a Provider (Employee) user updates their own profile. The `externalId` maps directly to a WordPress user ID and is passed to `wp_set_password()` and `wp_update_user()` without authorization checks. This makes it possible for authenticated attackers, with Provider-level (Employee) access and above, to take over any WordPress account — including Administrator — by injecting an arbitrary `externalId` value when updating their own provider profile.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ameliabooking | Booking for Appointments and Events Calendar – Amelia |
Affected:
0 , ≤ 2.1.3
(semver)
|
Credits
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CVE-2026-5459 (GCVE-0-2026-5459)
Vulnerability from cvelistv5 – Published: 2026-07-08 12:33 – Updated: 2026-07-08 14:00
VLAI
EPSS
VEX
Title
User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration <= 4.3.1 - Unauthenticated Insecure Direct Object Reference to Arbitrary User Subscription Overwrite
Summary
The User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.3.1 via the payment_page() function due to missing validation on the 'user_id' user controlled key. This makes it possible for unauthenticated attackers to activate a free subscription pack for any user on the site, overwriting their existing paid subscription and causing loss of paid features.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wedevs | User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration |
Affected:
0 , ≤ 4.3.1
(semver)
|
Credits
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Mitigation
Architecture and Design
For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
Mitigation
Architecture and Design
Implementation
Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.
Mitigation
Architecture and Design
Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.
No CAPEC attack patterns related to this CWE.