Common Weakness Enumeration

CWE-288

Allowed

Authentication Bypass Using an Alternate Path or Channel

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

The product requires authentication, but the product has an alternate path or channel that does not require authentication.

661 vulnerabilities reference this CWE, most recent first.

CVE-2026-35087 (GCVE-0-2026-35087)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:42 – Updated: 2026-05-27 15:39
VLAI
Title
Authentication Bypass in Slican telephone exchanges
Summary
Slican telephone exchanges allow administrative protocol authentication bypass. An attacker can bypass the need to enter login credentials by executing the appropriate command. This issue was fixed in versions below: - NCP: version 1.24.0250 - IPx series: version 6.61.0040 - CCT-1668: version 6.56.0430 - MAC-6400: version 6.56.0430 - CXS-0424: version 6.30.0510 The issue STILL EXISTS in End-Of-Life telephone exchanges in versions 4.xx and below: - CCT-1668 (CCT1CPU) - MAC-6400 - CXS-0424 These products were discontinued in 2011 and 2012 and and will not receive updates. These products require a hardware update in order to receive a software update. The vendor recommends that users of these devices contact the their service department directly to determine the options for upgrading.
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
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-27 15:39 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
CERT-PL CNA
References
URL Tags
https://cert.pl/posts/2026/05/CVE-2026-35087 third-party-advisory
Impacted products
Vendor Product Version
Slican IPx Affected: 0 , < 6.61.0040 (semver)
Create a notification for this product.
Slican CCT-1668 Affected: 0 , < 6.56.0430 (semver)
Create a notification for this product.
Slican MAC-6400 Affected: 0 , < 6.56.0430 (semver)
Create a notification for this product.
Slican CXS-0424 Affected: 0 , < 6.30.0510 (semver)
Create a notification for this product.
Slican NCP Affected: 0 , < 1.24.0250 (semver)
Create a notification for this product.
Date Public
2026-05-27 12:41
Credits
Grupa ŻN
Show details on NVD website
To clipboard 

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CVE-2026-34581 (GCVE-0-2026-34581)

Vulnerability from cvelistv5 – Published: 2026-04-02 18:04 – Updated: 2026-04-03 17:01
VLAI
Title
goshs has Auth Bypass via Share Token
Summary
goshs is a SimpleHTTPServer written in Go. From version 1.1.0 to before version 2.0.0-beta.2, when using the Share Token it is possible to bypass the limited selected file download with all the gosh functionalities, including code exec. This issue has been patched in version 2.0.0-beta.2.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-03 16:19 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
patrickhener goshs Affected: >= 1.1.0, < 2.0.0-beta.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34372 (GCVE-0-2026-34372)

Vulnerability from cvelistv5 – Published: 2026-03-31 20:19 – Updated: 2026-03-31 20:29
VLAI
Title
Sulu checks fix permissions for subentities endpoints
Summary
Sulu is an open-source PHP content management system based on the Symfony framework. From versions 1.0.0 to before 2.6.22, and 3.0.0 to before 3.0.5, a user which has permission for the Sulu Admin via at least one role could have access to the sub-entities of contacts via the admin API without even have permission for contacts. This issue has been patched in versions 2.6.22 and 3.0.5.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-31 20:29 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
sulu sulu Affected: >= 1.0.0, < 2.6.22
Affected: >= 3.0.0, < 3.0.5
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34040 (GCVE-0-2026-34040)

Vulnerability from cvelistv5 – Published: 2026-03-31 01:36 – Updated: 2026-04-02 03:55
VLAI
Title
Moby: AuthZ plugin bypass with oversized request body
Summary
Moby is an open source container framework. Prior to version 29.3.1, a security vulnerability has been detected that allows attackers to bypass authorization plugins (AuthZ). This issue has been patched in version 29.3.1.
Severity
8.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-01 00:00 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
moby moby Affected: < 29.3.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-33950 (GCVE-0-2026-33950)

Vulnerability from cvelistv5 – Published: 2026-04-02 16:08 – Updated: 2026-04-03 18:02
VLAI
Title
signalk-server: Privilege Escalation by Admin Role Injection via /enableSecurity
Summary
Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0-beta.4, there is a privilege escalation vulnerability by Admin Role Injection via /enableSecurity. An unauthenticated attacker can gain full Administrator access to the SignalK server at any time, allowing them to modify sensitive vessel routing data, alter server configurations, and access restricted endpoints. This issue has been patched in version 2.24.0-beta.4.
Severity
9.4 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-03 18:00 UTC
CWE
  • CWE-285 - Improper Authorization
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
  • CWE-862 - Missing Authorization
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
SignalK signalk-server Affected: < 2.24.0-beta.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-33843 (GCVE-0-2026-33843)

Vulnerability from cvelistv5 – Published: 2026-05-22 22:03 – Updated: 2026-08-10 15:12 Exclusively Hosted Service
VLAI
Title
Microsoft Azure Active Directory B2C Elevation of Privilege Vulnerability
Summary
Authentication bypass using an alternate path or channel in Microsoft Azure Active Directory B2C allows an unauthorized attacker to elevate privileges over a network.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 00:00 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
microsoft CNA
References
Impacted products
Vendor Product Version
Microsoft Microsoft Entra Affected: -
    cpe:2.3:a:microsoft:microsoft_entra_id:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-05-21 14:00
Show details on NVD website
To clipboard 

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CVE-2026-33591 (GCVE-0-2026-33591)

Vulnerability from cvelistv5 – Published: 2026-08-03 09:35 – Updated: 2026-08-03 10:51
VLAI
Title
Authentication bypass on WaptServer
Summary
A vulnerability in Wapt Server before version 2.6.1.17813 allows a  remote unauthenticated attacker to bypass security restriction using a specially crafted packet and retrieve a valid session token for the targeted account.
Severity
10 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 10:47 UTC
CWE
  • CWE-288 - Authentication bypass using an alternate path or channel
Assigner
ENISA CNA
References
Impacted products
Vendor Product Version
Tranquil IT Systems WAPT Server Affected: 2.6.0.16767 , ≤ 2.6.1.17787 (semver)
Create a notification for this product.
Credits
Brian CHERVY, System Engineer from Antiane, Réunion Team, https://antiane.com CERT-FR
Show details on NVD website
To clipboard 

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CVE-2026-33543 (GCVE-0-2026-33543)

Vulnerability from cvelistv5 – Published: 2026-06-24 21:01 – Updated: 2026-06-25 13:22
VLAI
Title
FOSSBilling: Authentication bypass allows unauthenticated administrator creation
Summary
FOSSBilling is a free, open-source billing and client management system. Versions 0.7.2 and prior expose a guest API endpoint, /api/guest/staff/create, intended for initial administrator bootstrap. Due to a flawed admin-existence check, the endpoint remains usable after an administrator already exists. The flawed guard check uses is_countable() on a value that returns a Model_Admin object or null rather than a countable type, causing the expression to always evaluate as true and bypass the intended protection. As a result, an attacker can reach the unprotected endpoint to create a new administrator account and immediately authenticate, gaining a fully privileged admin session even when an admin already exists. This issue has been fixed in version 0.8.0.
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
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 13:22 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
  • CWE-306 - Missing Authentication for Critical Function
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
FOSSBilling FOSSBilling Affected: < 0.8.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-33315 (GCVE-0-2026-33315)

Vulnerability from cvelistv5 – Published: 2026-03-24 14:53 – Updated: 2026-03-24 15:33
VLAI
Title
Vikunja has a 2FA Bypass via Caldav Basic Auth
Summary
Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, the Caldav endpoint allows login using Basic Authentication, which in turn allows users to bypass the TOTP on 2FA-enabled accounts. The user can then access standard project information that would normally be protected behind 2FA (if enabled), such as project name, description, etc. Version 2.2.0 patches the issue.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-24 15:33 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
go-vikunja vikunja Affected: < 2.2.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-33272 (GCVE-0-2026-33272)

Vulnerability from cvelistv5 – Published: 2026-10-09 14:44 – Updated: 2026-10-11 17:05
VLAI
Title
Red Lion Controls N-Tron 700 Series Authentication Bypass Using an Alternate Path or Channel
Summary
A malicious user with physical access to the device can boot the switch from factory settings without authentication, use the default administrative credentials to obtain administrative access, and save changes to the configuration file so that they persist next time the switch boots normally.
Severity
4.9 (Medium)
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
6.8 (Medium)
CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-11 16:49 UTC
CWE
Assigner
icscert CNA
References
Impacted products
Vendor Product Version
Red Lion Controls 700 Series Affected: 0 , < Firmware Versions 3.11.0 (custom)
Affected: 0 , < Bootloader Versions 2.0.6.1 (custom)
Unaffected: 3.11.1
Create a notification for this product.
Credits
Gabrianna (Ria) Milloway of Idaho National Laboratory reported this vulnerability to CISA.
Show details on NVD website
To clipboard 

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Mitigation
Architecture and Design

Funnel all access through a single choke point to simplify how users can access a resource. For every access, perform a check to determine if the user has permissions to access the resource.

CAPEC-127: Directory Indexing

An adversary crafts a request to a target that results in the target listing/indexing the content of a directory as output. One common method of triggering directory contents as output is to construct a request containing a path that terminates in a directory name rather than a file name since many applications are configured to provide a list of the directory's contents when such a request is received. An adversary can use this to explore the directory tree on a target as well as learn the names of files. This can often end up revealing test files, backup files, temporary files, hidden files, configuration files, user accounts, script contents, as well as naming conventions, all of which can be used by an attacker to mount additional attacks.

CAPEC-665: Exploitation of Thunderbolt Protection Flaws

An adversary leverages a firmware weakness within the Thunderbolt protocol, on a computing device to manipulate Thunderbolt controller firmware in order to exploit vulnerabilities in the implementation of authorization and verification schemes within Thunderbolt protection mechanisms. Upon gaining physical access to a target device, the adversary conducts high-level firmware manipulation of the victim Thunderbolt controller SPI (Serial Peripheral Interface) flash, through the use of a SPI Programing device and an external Thunderbolt device, typically as the target device is booting up. If successful, this allows the adversary to modify memory, subvert authentication mechanisms, spoof identities and content, and extract data and memory from the target device. Currently 7 major vulnerabilities exist within Thunderbolt protocol with 9 attack vectors as noted in the Execution Flow.

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