Weakness (CWE)
CWE-303: Incorrect Implementation of Authentication Algorithm
The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.
Source: MITRE CWE-303
123 results · Feed
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High 8.8CVE-2026-0073 Public exploit
In adbd_tls_verify_cert of auth.cpp, there is a possible bypass of wireless ADB mutual authentication due to a logic er…
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Critical 9.1
Apache Kafka: Missing JWT token validation in OAUTHBEARER authentication
A possible security vulnerability has been identified in Apache Kafka. By default, the broker property `sasl.oauthbearer.jwt.validator.class` is set to `org.apache.kafka.common.security.oauthbearer.DefaultJwtValidator`. It accepts any JWT token without valida…
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Medium 5.7
Account Takeover via Substring Matching in OpenID Connect Authentication
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 …
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Medium 4.7
Tillitis: TKey Client has an Error in Protocol Implementation
Tillitis TKey Client package is a Go package for a TKey client. Versions 1.2.0 and below contain a critical bug in the tkeyclient Go module which causes 1 out of every 256 User Supplied Secrets (USS) to be silently ignored, producing the same Compound Device …
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Critical 9.3
MiCode FileExplorer SwiFTP Server Authentication Bypass
MiCode FileExplorer contains an authentication bypass vulnerability in the embedded SwiFTP FTP server component that allows network attackers to log in without valid credentials. Attackers can send arbitrary username and password combinations to the PASS comm…
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Critical 9.4
OpenClaw < 2026.2.1 - Inbound Allowlist Policy Bypass in voice-call Extension via Empty Caller ID and Suffix Matching
OpenClaw versions prior to 2026.2.1 with the voice-call extension installed and enabled contain an authentication bypass vulnerability in inbound allowlist policy validation that accepts empty caller IDs and uses suffix-based matching instead of strict equali…
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Medium 6.5
Sricam DeviceViewer 3.12.0.1 Password Change Security Bypass
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…
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Medium 5.4
Authentication bypass via userID login when email and username login are disabled
Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to properly validate login method restrictions which allows an authenticated user to bypass SSO-only login requirements via userID-based authentication. Mattermost Advisory ID: MM…
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High 8.1
EspoCRM 5.7.0 < 5.9.0 - Two-Factor Authentication Bypass via Auth Token Reuse Between Accounts with Identical Passwords
EspoCRM 5.7.0 prior to 5.9.0 contains an authentication token reuse vulnerability that allows authenticated attackers to bypass two-factor authentication by exploiting token-to-password-hash mapping in application/Espo/Core/Utils/Authentication/Espo.php. Atta…
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High 8.1
ABB Ability OPTIMAX Authentication Bypass in Single-Sign On
Incorrect Implementation of Authentication Algorithm vulnerability in ABB ABB Ability OPTIMAX.This issue affects ABB Ability OPTIMAX: 6.1, 6.2, from 6.3.0 before 6.3.1-251120, from 6.4.0 before 6.4.1-251120.
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High 8.8
Authentication bypass by brute forcing Authentication Headers
Incorrect Implementation of Authentication Algorithm vulnerability in ABB WebPro SNMP Card PowerValue, ABB WebPro SNMP Card PowerValue UL.This issue affects WebPro SNMP Card PowerValue: through 1.1.8.K; WebPro SNMP Card PowerValue UL: through 1.1.8.K.
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High 7.2
Mattermost Jira plugin user spoofing enables Jira request forgery.
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 al…
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Critical 9.9
Cal.com Authentication Bypass via bad TOTP + password checks
Cal.com is open-source scheduling software. Prior to 5.9.8, A flaw in the login credentials provider allows an attacker to bypass password verification when a TOTP code is provided, potentially gaining unauthorized access to user accounts. This issue exists d…
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Critical 10.0
WP Directory Kit <= 1.4.4 - Authentication Bypass to Privilege Escalation via Account Takeover
The WP Directory Kit plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 1.4.4 due to incorrect implementation of the authentication algorithm in the "wdk_generate_auto_login_link" function. This is due to the fea…
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Critical 9.9
Account Takeover via Code Exchange Endpoint
Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to to verify that the token used during the code exchange originates from the same authentication flow, which allows an authenticated user to perform account …
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Critical 9.9
Account takeover on OAuth/OpenID-enabled servers
Mattermost versions 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12, 11.0.x <= 11.0.3 fail to properly validate OAuth state tokens during OpenID Connect authentication which allows an authenticated attacker with team creation privileges to take over…
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Critical 9.8
The Newtec Celox UHD (models: CELOXA504, CELOXA820) running firmware version celox-21.6.13 is vulnerable to an authenti…
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High 8.4
Microsoft Exchange Server Elevation of Privilege Vulnerability
Incorrect implementation of authentication algorithm in Microsoft Exchange Server allows an unauthorized attacker to elevate privileges locally.
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Medium 6.3
Python Social Auth - Django has unsafe account association
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 whe…
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High 7.5
Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.1…
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High 8.1CVE-2025-57808 Scanner template
ESP-IDF web_server basic auth bypass using empty or incomplete Authorization header
ESPHome is a system to control microcontrollers remotely through Home Automation systems. In version 2025.8.0 in the ESP-IDF platform, ESPHome's web_server authentication check can pass incorrectly when the client-supplied base64-encoded Authorization value i…
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Medium 6.5
Inappropriate implementation in File Picker in Google Chrome prior to 139.0.7258.127 allowed a remote attacker who conv…
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High 7.3
immich allows account hijacking through oauth2
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, …
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High 8.1
A state machine transition flaw in the Bluetooth Low Energy (BLE) stack of Cypress PSoC4 v3.66 allows attackers to bypa…
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Medium 6.9
SignXML's signature verification with HMAC is vulnerable to an algorithm confusion attack
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 pri…
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Medium 5.4
Bypass of System Admin User Deactivation Controls for Personal Access Tokens in Mattermost Server
Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly invalidate personal access tokens upon user deactivation, allowing deactivated users to maintain full system access by exploiting access token valida…
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Medium 4.2
Google OAuth Authentication Bypass for Converted Bot Accounts
Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to clear Google OAuth credentials when converting user accounts to bot accounts, allowing attackers to gain unauthorized access to bot accounts via the Google OAu…
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Medium 5.4
Unauthorized Bot Login Using Credentials
Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to invalidate the cache when a user account is converted to a bot which allows an attacker to login to the bot exactly one time via normal credentials.
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Medium 5.5
Improper session handling in B&R APROL
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 w…
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Medium 6.3
GLPI vulnerable to unauthorized authentication by email using the OAuthIMAP plugin
GLPI is a free asset and IT management software package. Starting in version 9.5.0 and prior to version 10.0.18, if a "Mail servers" authentication provider is configured to use an Oauth connection provided by the OauthIMAP plugin, anyone can connect to GLPI …
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Critical 9.8
Windows NTLM V1 Elevation of Privilege Vulnerability
Windows NTLM V1 Elevation of Privilege Vulnerability
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Medium 5.3
Apache Kafka: SCRAM authentication vulnerable to replay attacks when used without encryption
Incorrect Implementation of Authentication Algorithm in Apache Kafka's SCRAM implementation. Issue Summary: Apache Kafka's implementation of the Salted Challenge Response Authentication Mechanism (SCRAM) did not fully adhere to the requirements of RFC 5802 [1…
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Medium 5.4
eLabFTW MFA bypass
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…
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Critical 9.2
Support for authentication bypass condition in M-Files LDAP authentication
Authentication bypass condition in LDAP authentication in M-Files server versions before 24.11 supported usage of OpenLDAP configurations that allowed user authentication without a password when the LDAP server itself had the vulnerable configuration.
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Medium 6.5
Multi-Factor Authentication Bypass in Progress WS_FTP Server
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.
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Low 3.1
MFA Code Replay
Mattermost versions 9.11.x <= 9.11.2, and 9.5.x <= 9.5.10 fail to protect the mfa code against replay attacks, which allows an attacker to reuse the MFA code within ~30 seconds
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Low 3.5
Incorrect Session Creation with Desktop SSO
Mattermost versions 9.11.X <= 9.11.1, 9.5.x <= 9.5.9 icorrectly issues two sessions when using desktop SSO - one in the browser and one in desktop with incorrect settings.
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Medium 5.0
Eclipse EDC: Consumer pull transfer token validation checks not applied
In Eclipse Dataspace Components, from version 0.5.0 and before version 0.9.0, the ConsumerPullTransferTokenValidationApiController does not check for token validity (expiry, not-before, issuance date), which can allow an attacker to bypass the check for token…
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Medium 6.5
Authentication bypass in GoAnywhere MFT prior to 7.6.0
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 mo…
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Critical 9.8
Incorrect implementation of an authentication algorithm in Ivanti vTM other than versions 22.2R1 or 22.7R2 allows a rem…
KEV Sep 24, 2024