VYPR

CWE-303

Incorrect Implementation of Authentication Algorithm

BaseDraft

Description

The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.

This incorrect implementation may allow authentication to be bypassed.

Hierarchy (View 1000)

Parents

Children

Related attack patterns (CAPEC)

CAPEC-90

CVEs mapped to this weakness (101)

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  • CVE-2026-33190HigMay 5, 2026
    risk 0.42cvss 7.5epss 0.00

    CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the tsig plugin can be bypassed on non-plain-DNS transports (DoT, DoH, DoH3, DoQ, and gRPC) because it trusts the transport writer's TsigStatus() instead of performing verification itself. The DoH and DoH3…

  • CVE-2019-25436MedFeb 20, 2026
    risk 0.42cvss 6.5epss 0.00

    Sricam DeviceViewer 3.12.0.1 contains a password change security bypass vulnerability that allows authenticated users to change passwords without proper validation of the old password field. Attackers can inject a large payload into the old password parameter during the change…

  • CVE-2025-8881MedAug 13, 2025
    risk 0.42cvss 6.5epss 0.00

    Inappropriate implementation in File Picker in Google Chrome prior to 139.0.7258.127 allowed a remote attacker who convinced a user to engage in specific UI gestures to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

  • CVE-2024-9999MedNov 12, 2024
    risk 0.42cvss 6.5epss 0.00

    In WS_FTP Server versions before 8.8.9 (2022.0.9), an Incorrect Implementation of Authentication Algorithm in the Web Transfer Module allows users to skip the second-factor verification and log in with username and password only.

  • CVE-2024-25157MedAug 14, 2024
    risk 0.42cvss 6.5epss 0.01

    An authentication bypass vulnerability in GoAnywhere MFT prior to 7.6.0 allows Admin Users with access to the Agent Console to circumvent some permission checks when attempting to visit other pages. This could lead to unauthorized information disclosure or modification.

  • CVE-2022-43635MedMar 29, 2023
    risk 0.42cvss 6.5epss 0.01

    This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of TP-Link TL-WR940N 6_211111 3.20.1(US) routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service,…

  • CVE-2026-11430HigAug 7, 2026
    risk 0.40cvss 7.3epss 0.01

    Grav CMS's scheduler-webhook plugin contains an authentication bypass in the webhook token check. When the webhook feature is enabled but no webhookToken is configured, a compound conditional short-circuits and skips token validation, so an unauthenticated remote attacker who…

  • CVE-2026-12773HigJun 21, 2026
    risk 0.40cvss 7.3epss 0.01

    A weakness has been identified in BerriAI litellm up to 1.59.8. Affected is the function UserAPIKeyAuth of the file litellm/proxy/_experimental/mcp_server/auth/user_api_key_auth_mcp.py of the component MCP Proxy. Executing a manipulation can lead to improper authentication. The…

  • CVE-2025-14273HigDec 22, 2025
    risk 0.40cvss 7.2epss 0.00

    Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 with the Jira plugin enabled and Mattermost Jira plugin versions <=4.4.0 fail to enforce authentication and issue-key path restrictions in the Jira plugin, which allows an…

  • CVE-2025-43856HigJul 11, 2025
    risk 0.40cvss epss 0.00

    immich is a high performance self-hosted photo and video management solution. Prior to 1.132.0, immich is vulnerable to account hijacking through oauth2, because the state parameter is not being checked. The oauth2 state parameter is similar to a csrf token, so when the user…

  • CVE-2025-48994MedJun 2, 2025
    risk 0.38cvss epss 0.00

    SignXML is an implementation of the W3C XML Signature standard in Python. When verifying signatures with X509 certificate validation turned off and HMAC shared secret set (`signxml.XMLVerifier.verify(require_x509=False, hmac_key=...`), versions of SignXML prior to 4.0.4 are…

  • CVE-2024-8314MedMar 25, 2025
    risk 0.36cvss epss 0.00

    An Incorrect Implementation of Authentication Algorithm and Exposure of Data Element to Wrong Ses-sion vulnerability in the session handling used in B&R APROL <4.4-00P5 may allow an authenticated network attacker to take over a currently active user session without login…

  • CVE-2024-52586MedDec 9, 2024
    risk 0.35cvss 5.4epss 0.00

    eLabFTW is an open source electronic lab notebook for research labs. A vulnerability has been found starting in version 4.6.0 and prior to version 5.1.0 that allows an attacker to bypass eLabFTW's built-in multifactor authentication mechanism. An attacker who can authenticate…

  • CVE-2020-5268MedApr 21, 2020
    risk 0.35cvss 6.5epss 0.01

    In Saml2 Authentication Services for ASP.NET versions before 1.0.2, and between 2.0.0 and 2.6.0, there is a vulnerability in how tokens are validated in some cases. Saml2 tokens are usually used as bearer tokens - a caller that presents a token is assumed to be the subject of…

  • CVE-2026-66411MedAug 10, 2026
    risk 0.34cvss 5.3epss 0.00

    DEEBOT PRO M1 and DEEBOT PRO K1VAC incorrectly implement authentication algorithm in Websocket communications. An unauthenticated attacker may connect and operate the affected robot.

  • CVE-2025-61783MedOct 9, 2025
    risk 0.34cvss epss 0.01

    Python Social Auth is a social authentication/registration mechanism. In versions prior to 5.6.0, upon authentication, the user could be associated by e-mail even if the `associate_by_email` pipeline was not included. This could lead to account compromise when a third-party…

  • CVE-2022-46146MedNov 29, 2022
    risk 0.33cvss 6.2epss 0.01

    Prometheus Exporter Toolkit is a utility package to build exporters. Prior to versions 0.7.2 and 0.8.2, if someone has access to a Prometheus web.yml file and users' bcrypted passwords, they can bypass security by poisoning the built-in authentication cache. Versions 0.7.2 and…

  • CVE-2023-4641MedDec 27, 2023
    risk 0.31cvss 4.7epss 0.00

    A flaw was found in shadow-utils. When asking for a new password, shadow-utils asks the password twice. If the password fails on the second attempt, shadow-utils fails in cleaning the buffer used to store the first entry. This may allow an attacker with enough access to retrieve…

  • CVE-2022-4861MedDec 30, 2022
    risk 0.31cvss 4.8epss 0.01

    Incorrect implementation in authentication protocol in M-Files Client before 22.5.11356.0 allows high privileged user to get other users tokens to another resource.

  • CVE-2026-27656MedMar 25, 2026
    risk 0.30cvss 5.7epss 0.00

    Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to properly validate user identity in the OpenID {{IsSameUser()}} comparison logic, which allows an attacker to take over arbitrary user accounts via an overly permissive substring…