Common Weakness Enumeration

CWE-288

Allowed

Authentication Bypass Using an Alternate Path or Channel

Abstraction: Base · Status: Incomplete

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

1157 vulnerabilities reference this CWE, most recent first.

CVE-2026-78259 (GCVE-0-2026-78259)

Vulnerability from cvelistv5 – Published: 2026-08-24 21:31 – Updated: 2026-08-24 21:31
VLAI
Title
WordPress WPLegalPages plugin <= 3.7.0 - Broken Authentication vulnerability
Summary
Unauthenticated Broken Authentication in WPLegalPages <= 3.7.0 versions.
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
References
Impacted products
Vendor Product Version
WP Legal Pages WPLegalPages Affected: n/a , ≤ 3.7.0 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-75627 (GCVE-0-2026-75627)

Vulnerability from cvelistv5 – Published: 2026-08-18 10:46 – Updated: 2026-08-18 18:06
VLAI
Title
Bastillion Authentication Bypass via Path-Prefix Routing Mismatch
Summary
Bastillion fails to properly validate request URI paths in its controller dispatcher, allowing unauthenticated attackers to bypass authentication filters by prefixing requests with arbitrary path segments. Attackers can access administrative controllers to read user listings, create manager accounts, and register managed systems, gaining control over SSH access to the managed fleet.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 18:06 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Impacted products
Vendor Product Version
bastillion-io Bastillion Affected: 0 , ≤ 5.1.0 (custom)
Create a notification for this product.
Date Public
2026-08-17 00:00
Show details on NVD website

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CVE-2026-74001 (GCVE-0-2026-74001)

Vulnerability from cvelistv5 – Published: 2026-08-20 12:07 – Updated: 2026-08-20 16:27
VLAI
Title
WordPress User Registration & Membership Pro plugin <= 5.4.5 - Account Takeover vulnerability
Summary
Unauthenticated Broken Authentication in User Registration & Membership Pro <= 5.4.5 versions.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 16:00 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
References
Impacted products
Vendor Product Version
WPEverest User Registration & Membership Pro Affected: n/a , ≤ 5.4.5 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-73399 (GCVE-0-2026-73399)

Vulnerability from cvelistv5 – Published: 2026-08-18 14:00 – Updated: 2026-08-18 15:11
VLAI
Title
WordPress Flutterwave WooCommerce plugin <= 3.3.0 - Broken Authentication vulnerability
Summary
Unauthenticated Broken Authentication in Flutterwave WooCommerce <= 3.3.0 versions.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 15:00 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
References
Impacted products
Vendor Product Version
flutterwave Flutterwave WooCommerce Affected: n/a , ≤ 3.3.0 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-73398 (GCVE-0-2026-73398)

Vulnerability from cvelistv5 – Published: 2026-08-18 14:00 – Updated: 2026-08-18 19:48
VLAI
Title
WordPress Piraeus Bank WooCommerce Payment Gateway plugin 3.2.0 - Broken Authentication vulnerability
Summary
Unauthenticated Broken Authentication in Piraeus Bank WooCommerce Payment Gateway 3.2.0 versions.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:37 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
References
Impacted products
Show details on NVD website

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CVE-2026-73396 (GCVE-0-2026-73396)

Vulnerability from cvelistv5 – Published: 2026-08-18 14:00 – Updated: 2026-08-18 19:48
VLAI
Title
WordPress MWB HubSpot for WooCommerce plugin <= 1.6.7 - Broken Authentication vulnerability
Summary
Subscriber Broken Authentication in MWB HubSpot for WooCommerce <= 1.6.7 versions.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:36 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
References
Impacted products
Vendor Product Version
MakeWebBetter MWB HubSpot for WooCommerce Affected: n/a , ≤ 1.6.7 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-73381 (GCVE-0-2026-73381)

Vulnerability from cvelistv5 – Published: 2026-08-18 14:00 – Updated: 2026-08-18 14:42
VLAI
Title
WordPress Popup by Supsystic plugin <= 1.13.0 - Broken Authentication vulnerability
Summary
Unauthenticated Broken Authentication in Popup by Supsystic <= 1.13.0 versions.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 14:41 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
References
Impacted products
Vendor Product Version
supsystic Popup by Supsystic Affected: n/a , ≤ 1.13.0 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-73379 (GCVE-0-2026-73379)

Vulnerability from cvelistv5 – Published: 2026-08-18 14:00 – Updated: 2026-08-18 19:48
VLAI
Title
WordPress Contact Form by Supsystic plugin < 1.10.0 - Bypass Vulnerability vulnerability
Summary
Unauthenticated Bypass Vulnerability in Contact Form by Supsystic < 1.10.0 versions.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:36 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
References
Impacted products
Vendor Product Version
supsystic Contact Form by Supsystic Affected: n/a , < 1.10.0 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-73188 (GCVE-0-2026-73188)

Vulnerability from cvelistv5 – Published: 2026-08-13 13:37 – Updated: 2026-08-14 08:44
VLAI

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. Duplicate to CVE-2026-13610.

Show details on NVD website

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CVE-2026-72691 (GCVE-0-2026-72691)

Vulnerability from cvelistv5 – Published: 2026-08-10 11:59 – Updated: 2026-08-10 18:22
VLAI
Title
OpenSignLabs opensignserver - Authentication Bypass
Summary
An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTER_KEY-signed file access tokens for arbitrary stored files via the getsignedurl Parse cloud function. The function skips its isAuthenticated check whenever any docId parameter is supplied, even one corresponding to no real document, allowing the authentication gate to be bypassed by supplying an arbitrary string as docId.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 15:37 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
References
URL Tags
https://github.com/OpenSignLabs/OpenSign third-party-advisory
Impacted products
Vendor Product Version
OpenSignLabs opensignserver Affected: 0 , ≤ 2.37.0 (semver)
Create a notification for this product.
Date Public
2026-08-10 12:00
Show details on NVD website

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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.