CWE-603

Use of Client-Side Authentication

A client/server product performs authentication within client code but not in server code, allowing server-side authentication to be bypassed via a modified client that omits the authentication check.

CVE-2025-12868 (GCVE-0-2025-12868)
Vulnerability from cvelistv5
Published
2025-11-10 03:14
Modified
2025-11-10 21:42
Severity ?
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-603 - Use of Client-Side Authentication
Summary
New Site Server developed by CyberTutor has a Use of Client-Side Authentication vulnerability, allowing unauthenticated remote attackers to modify the frontend code to gain administrator privileges on the website.
References
Impacted products
Vendor Product Version
CyberTutor New Site Server Version: 0
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CVE-2025-61940 (GCVE-0-2025-61940)
Vulnerability from cvelistv5
Published
2025-12-02 21:07
Modified
2025-12-02 21:39
Severity ?
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
8.3 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
CWE
Summary
NMIS/BioDose V22.02 and previous versions rely on a common SQL Server user account to access data in the database. User access in the client application is restricted by a password authentication check in the client software but the underlying database connection always has access. The latest version of NMIS/BioDose introduces an option to use Windows user authentication with the database, which would restrict this database connection.
References
Impacted products
Vendor Product Version
Mirion Medical EC2 Software NMIS BioDose Version: 0   < 23.0
 Create a notification for this product.
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CVE-2025-62649 (GCVE-0-2025-62649)
Vulnerability from cvelistv5
Published
2025-10-17 00:00
Modified
2025-10-29 15:05
Severity ?
5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CWE
  • CWE-603 - Use of Client-Side Authentication
Summary
The Restaurant Brands International (RBI) assistant platform through 2025-09-06 relies on client-side authentication for submission of equipment orders.
References
Impacted products
Vendor Product Version
Restaurant Brands International assistant platform Version: 0   <
Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-62650 (GCVE-0-2025-62650)
Vulnerability from cvelistv5
Published
2025-10-17 00:00
Modified
2025-10-29 15:04
Severity ?
8.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
CWE
  • CWE-603 - Use of Client-Side Authentication
Summary
The Restaurant Brands International (RBI) assistant platform through 2025-09-06 relies on client-side authentication for use of the diagnostic screen.
References
Impacted products
Vendor Product Version
Restaurant Brands International assistant platform Version: 0   <
Create a notification for this product.
Show details on NVD website

To clipboard 

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Mitigation

Phase: Architecture and Design

Description:

  • Do not rely on client side data. Always perform server side authentication.

No CAPEC attack patterns related to this CWE.

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