Common Weakness Enumeration
CWE-603
AllowedUse of Client-Side Authentication
Abstraction: Base · Status: Draft
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.
45 vulnerabilities reference this CWE, most recent first.
GHSA-C6R9-837W-24GP
Vulnerability from github – Published: 2025-10-17 21:31 – Updated: 2025-10-18 03:30
VLAI
Details
The Restaurant Brands International (RBI) assistant platform through 2025-09-06 relies on client-side authentication for submission of equipment orders.
Severity
5.8 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-62649"
],
"database_specific": {
"cwe_ids": [
"CWE-603"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-17T21:15:38Z",
"severity": "MODERATE"
},
"details": "The Restaurant Brands International (RBI) assistant platform through 2025-09-06 relies on client-side authentication for submission of equipment orders.",
"id": "GHSA-c6r9-837w-24gp",
"modified": "2025-10-18T03:30:25Z",
"published": "2025-10-17T21:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-62649"
},
{
"type": "WEB",
"url": "https://archive.today/fMYQp"
},
{
"type": "WEB",
"url": "https://bobdahacker.com/blog/rbi-hacked-drive-thrus"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20250906134240/https:/bobdahacker.com/blog/rbi-hacked-drive-thrus"
},
{
"type": "WEB",
"url": "https://www.malwarebytes.com/blog/news/2025/09/popeyes-tim-hortons-burger-king-platforms-have-catastrophic-vulnerabilities-say-hackers"
},
{
"type": "WEB",
"url": "https://www.yahoo.com/news/articles/burger-king-hacked-attackers-impressed-124154038.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-G8VR-X4QH-25QG
Vulnerability from github – Published: 2026-05-19 09:31 – Updated: 2026-06-26 09:30
VLAI
Summary
Keycloak: Policy bypass during WebAuthn credential registration via client-side JavaScript manipulation
Details
A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side processAction() fails to validate that the newly created credential's parameters, such as public key algorithms, match the realm's configured WebAuthn policies. This could lead to the creation of credentials that do not adhere to administrative security requirements, potentially weakening the overall security posture of the system by allowing non-compliant authentication methods.
Severity
4.3 (Medium)
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 26.6.2"
},
"package": {
"ecosystem": "Maven",
"name": "org.keycloak:keycloak-services"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "26.6.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-8830"
],
"database_specific": {
"cwe_ids": [
"CWE-603"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-04T17:28:15Z",
"nvd_published_at": "2026-05-19T07:16:30Z",
"severity": "MODERATE"
},
"details": "A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side processAction() fails to validate that the newly created credential\u0027s parameters, such as public key algorithms, match the realm\u0027s configured WebAuthn policies. This could lead to the creation of credentials that do not adhere to administrative security requirements, potentially weakening the overall security posture of the system by allowing non-compliant authentication methods.",
"id": "GHSA-g8vr-x4qh-25qg",
"modified": "2026-06-26T09:30:45Z",
"published": "2026-05-19T09:31:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8830"
},
{
"type": "WEB",
"url": "https://github.com/keycloak/keycloak/issues/49133"
},
{
"type": "WEB",
"url": "https://github.com/keycloak/keycloak/pull/49344"
},
{
"type": "WEB",
"url": "https://github.com/keycloak/keycloak/commit/47b9aef70948564151af85fd52e0d7e508c76490"
},
{
"type": "WEB",
"url": "https://github.com/keycloak/keycloak/commit/d3da77ef363d698e7a74470ba52fcdce09e394c4"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:25097"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:25098"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:30049"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:30050"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-8830"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479565"
},
{
"type": "PACKAGE",
"url": "https://github.com/keycloak/keycloak"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "Keycloak: Policy bypass during WebAuthn credential registration via client-side JavaScript manipulation"
}
GHSA-HFG9-FM93-GH43
Vulnerability from github – Published: 2022-05-24 17:30 – Updated: 2022-06-16 00:00
VLAI
Details
A vulnerability has been identified in SIPORT MP (All versions < 3.2.1). Vulnerable versions of the device could allow an authenticated attacker to impersonate other users of the system and perform (potentially administrative) actions on behalf of those users if the single sign-on feature ("Allow logon without password") is enabled.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2020-7591"
],
"database_specific": {
"cwe_ids": [
"CWE-287",
"CWE-603"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-10-15T19:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in SIPORT MP (All versions \u003c 3.2.1). Vulnerable versions of the device could allow an authenticated attacker to impersonate other users of the system and perform (potentially administrative) actions on behalf of those users if the single sign-on feature (\"Allow logon without password\") is enabled.",
"id": "GHSA-hfg9-fm93-gh43",
"modified": "2022-06-16T00:00:29Z",
"published": "2022-05-24T17:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-7591"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-384879.pdf"
},
{
"type": "WEB",
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-287-06"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HRXV-HVCR-JJ9X
Vulnerability from github – Published: 2025-03-31 06:30 – Updated: 2025-03-31 06:30
VLAI
Details
Use of client-side authentication issue exists in CHOCO TEI WATCHER mini (IB-MCT001) all versions. If this issue is exploited, a remote attacker may obtain the product login password without authentication.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2025-24517"
],
"database_specific": {
"cwe_ids": [
"CWE-603"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-31T05:15:15Z",
"severity": "HIGH"
},
"details": "Use of client-side authentication issue exists in CHOCO TEI WATCHER mini (IB-MCT001) all versions. If this issue is exploited, a remote attacker may obtain the product login password without authentication.",
"id": "GHSA-hrxv-hvcr-jj9x",
"modified": "2025-03-31T06:30:26Z",
"published": "2025-03-31T06:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-24517"
},
{
"type": "WEB",
"url": "https://jvn.jp/en/vu/JVNVU91154745"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-084-04"
},
{
"type": "WEB",
"url": "https://www.inaba.co.jp/files/chocomini_vulnerability.pdf"
},
{
"type": "WEB",
"url": "https://www.nozominetworks.com/blog/unpatched-vulnerabilities-in-production-line-cameras-may-allow-remote-surveillance-hinder-stoppage-recording"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-J7P7-W7PR-MWPC
Vulnerability from github – Published: 2026-05-19 15:31 – Updated: 2026-05-19 15:31
VLAI
Details
Sparx Enterprise Architect software has a security feature that limits user's actions to those specified in the role. An authenticated attacker can modify the Enterprise Architect client behavior (e.g. using a debugger) and log in as any other user or administrator - then it is possible to do every possible change to the repository.
The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 17.1 and below were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.
Severity
{
"affected": [],
"aliases": [
"CVE-2026-42098"
],
"database_specific": {
"cwe_ids": [
"CWE-603"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-19T14:16:42Z",
"severity": "HIGH"
},
"details": "Sparx Enterprise Architect software has a security feature that limits user\u0027s actions to those specified in the role. An authenticated attacker can modify the Enterprise Architect client behavior (e.g. using a debugger) and log in as any other user or administrator - then it is possible to do every possible change to the repository.\n\nThe vendor was notified early about this vulnerability, but didn\u0027t respond with the details of vulnerability or vulnerable version range. Only version 17.1 and below were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.",
"id": "GHSA-j7p7-w7pr-mwpc",
"modified": "2026-05-19T15:31:29Z",
"published": "2026-05-19T15:31:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42098"
},
{
"type": "WEB",
"url": "https://cert.pl/en/posts/2026/05/CVE-2026-42096"
},
{
"type": "WEB",
"url": "https://efigo.pl/blog/CVE-2026-42096"
},
{
"type": "WEB",
"url": "https://sparxsystems.com/products/ea"
},
{
"type": "WEB",
"url": "https://sploit.tech/2026/05/19/Sparx-Enterprise-Architect-PCS.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-M839-8XGR-VQHM
Vulnerability from github – Published: 2025-12-02 21:31 – Updated: 2025-12-02 21:31
VLAI
Details
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.
Severity
{
"affected": [],
"aliases": [
"CVE-2025-61940"
],
"database_specific": {
"cwe_ids": [
"CWE-603"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-02T21:15:51Z",
"severity": "HIGH"
},
"details": "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.",
"id": "GHSA-m839-8xgr-vqhm",
"modified": "2025-12-02T21:31:30Z",
"published": "2025-12-02T21:31:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61940"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-25-336-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
"type": "CVSS_V3"
},
{
"score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-MP39-4PH2-875C
Vulnerability from github – Published: 2024-04-23 15:30 – Updated: 2024-07-03 18:36
VLAI
Details
An issue in Flipsnack v.18/03/2024 allows a local attacker to obtain sensitive information via the reader.gz.js file.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2024-28627"
],
"database_specific": {
"cwe_ids": [
"CWE-603"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-23T14:15:08Z",
"severity": "HIGH"
},
"details": "An issue in Flipsnack v.18/03/2024 allows a local attacker to obtain sensitive information via the reader.gz.js file.",
"id": "GHSA-mp39-4ph2-875c",
"modified": "2024-07-03T18:36:39Z",
"published": "2024-04-23T15:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-28627"
},
{
"type": "WEB",
"url": "https://labs.integrity.pt/advisories/cve-2024-28627"
},
{
"type": "WEB",
"url": "https://www.flipsnack.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MQMF-37JQ-C9P6
Vulnerability from github – Published: 2026-01-23 09:30 – Updated: 2026-01-23 09:30
VLAI
Details
IAQS and I6 developed by JNC has a Client-Side Enforcement of Server-Side Security vulnerability, allowing unauthenticated remote attackers to gain administrator privileges by manipulating the web front-end.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-1363"
],
"database_specific": {
"cwe_ids": [
"CWE-603"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-23T09:15:47Z",
"severity": "CRITICAL"
},
"details": "IAQS and I6 developed by JNC has a Client-Side Enforcement of Server-Side Security vulnerability, allowing unauthenticated remote attackers to gain administrator privileges by manipulating the web front-end.",
"id": "GHSA-mqmf-37jq-c9p6",
"modified": "2026-01-23T09:30:29Z",
"published": "2026-01-23T09:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1363"
},
{
"type": "WEB",
"url": "https://www.twcert.org.tw/en/cp-139-10653-117a1-2.html"
},
{
"type": "WEB",
"url": "https://www.twcert.org.tw/tw/cp-132-10652-4cdca-1.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-MXFH-PJ5J-6V79
Vulnerability from github – Published: 2024-06-27 18:31 – Updated: 2024-09-17 18:33
VLAI
Details
TELSAT marKoni FM Transmitters are vulnerable to an attacker bypassing authentication and gaining administrator privileges.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2024-39375"
],
"database_specific": {
"cwe_ids": [
"CWE-603"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-27T16:15:11Z",
"severity": "CRITICAL"
},
"details": "TELSAT marKoni FM Transmitters are vulnerable to an attacker bypassing authentication and gaining administrator privileges.",
"id": "GHSA-mxfh-pj5j-6v79",
"modified": "2024-09-17T18:33:24Z",
"published": "2024-06-27T18:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39375"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-179-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-P6XJ-9VGW-4XP9
Vulnerability from github – Published: 2022-11-23 18:30 – Updated: 2022-11-28 18:30
VLAI
Details
This vulnerability occurs when a web server fails to correctly process the Content-Length of POST requests. This can lead to HTTP request smuggling or XSS.
Severity
6.1 (Medium)
{
"affected": [],
"aliases": [
"CVE-2022-38114"
],
"database_specific": {
"cwe_ids": [
"CWE-444",
"CWE-603"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-11-23T17:15:00Z",
"severity": "MODERATE"
},
"details": "This vulnerability occurs when a web server fails to correctly process the Content-Length of POST requests. This can lead to HTTP request smuggling or XSS.",
"id": "GHSA-p6xj-9vgw-4xp9",
"modified": "2022-11-28T18:30:15Z",
"published": "2022-11-23T18:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-38114"
},
{
"type": "WEB",
"url": "https://documentation.solarwinds.com/en/success_center/sem/content/release_notes/sem_2022-4_release_notes.htm"
},
{
"type": "WEB",
"url": "https://www.solarwinds.com/trust-center/security-advisories/CVE-2022-38114"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
Mitigation
Architecture and Design
Do not rely on client side data. Always perform server side authentication.
No CAPEC attack patterns related to this CWE.