CVE-2026-45675 Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, lin...

CVE-2026-45675 Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, lin...

CVE-2026-45675

Open WebUI CVE-2026-45675 describes a TOCTOU race in first-user admin role assignment for LDAP and OAuth paths prior to version 0.9.0. The signup path was fixed to insert with a default role first and upgrade if only one user remains; LDAP and OAuth paths did not receive that fix. Attack scenario...

CVE-2026-45675 Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, lin...

Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts

Summary The LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, line 663 was explicitly patched to prevent this race with the comment "Insert with default role first to avoid...

GHSA-H3WW-Q6XX-W7X3 Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts

Summary The LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, line 663 was explicitly patched to prevent this race with the comment "Insert with default role first to avoid...

EUVD-2020-31218

Easy2Pilot 7 contains a cross-site request forgery vulnerability that allows attackers to add unauthorized user accounts by tricking authenticated administrators into visiting malicious pages. Attackers can craft HTML forms targeting the admin.php?action=adduser endpoint with POST requests...

CVE-2020-37217

Easy2Pilot 7 contains a cross-site request forgery vulnerability that allows attackers to add unauthorized user accounts by tricking authenticated administrators into visiting malicious pages. Attackers can craft HTML forms targeting the admin.php?action=adduser endpoint with POST requests...

CVE-2020-37217 Easy2Pilot 7 Cross-Site Request Forgery via admin.php

Easy2Pilot 7 contains a cross-site request forgery vulnerability that allows attackers to add unauthorized user accounts by tricking authenticated administrators into visiting malicious pages. Attackers can craft HTML forms targeting the admin.php?action=adduser endpoint with POST requests...

CVE-2020-37217

CVE-2020-37217 affects Easy2Pilot 7 and describes a Cross-Site Request Forgery vulnerability targeting admin.php?action=add_user. An attacker can trick an authenticated administrator into submitting a crafted POST to create new administrative accounts without consent. The described impact include...

PT-2026-40618

Easy2Pilot 7 contains a cross-site request forgery vulnerability that allows attackers to add unauthorized user accounts by tricking authenticated administrators into visiting malicious pages. Attackers can craft HTML forms targeting the admin.php?action=add user endpoint with POST requests...

CVE-2026-43875 WWBN AVideo: Password Hash Leaked in MobileManager OAuth Redirect URL Enables Account Takeover

WWBN AVideo is an open source video platform. In versions up to and including 29.0, plugin/MobileManager/oauth2.php completes an OAuth login by sending an HTTP 302 Location: oauth2Success.php?user=&pass= where is the victim's stored password hash md5hash"whirlpool", sha1password read directly fro...

May 2026 Security Advisory Ivanti Endpoint Manager Mobile (EPMM) (Multiple CVEs)

Summary Ivanti has released updates for Ivanti Endpoint Manager Mobile EPMM which addresses five high severity vulnerabilities. We are aware of a very limited number of customers exploited with CVE-2026-6973. Successful exploitation requires Admin authentication. If customers followed Ivanti’s...

EUVD-2026-28272

Admidio is an open-source user management solution. Prior to version 5.0.9, a logic error in Admidio's two-factor authentication reset inverts the authorization check. Non-admin users cannot remove their own TOTP configuration, but they can remove other users' TOTP, including administrators. A...

CVE-2026-41660

Admidio prior to version 5.0.9 contains an inverted authorization check in two_factor_authentication.php that allows non-admin group leaders with profile edit rights on an admin account to strip that admin’s 2FA, compromising admin accounts. The issue is fixed in 5.0.9; upgrade to 5.0.9+ to mitig...

Low-privileged Grav API users can create super-admin accounts via blueprint-upload

Summary In Grav 2.0.0-beta.2, a low-privileged authenticated API user with api.media.write can abuse /api/v1/blueprint-upload to write an arbitrary YAML file into user/accounts/, then log in as the newly created account with api.super privileges. This results in full administrative compromise of...

Admidio has Inverted 2FA Reset Authorization Check that Lets Group Leaders Strip Admin TOTP

Summary A logic error in Admidio's two-factor authentication reset inverts the authorization check. Non-admin users cannot remove their own TOTP configuration, but they can remove other users' TOTP, including administrators. A group leader with profile edit rights on an admin account can strip th...

Incorrect Authorization

Overview admidio/admidio is a free open source user management system for websites of organizations and groups. Affected versions of this package are vulnerable to Incorrect Authorization due to an inverted authorization check in the twofactorauthentication.php process. An attacker can remove...

EUVD-2026-23632

Movary is a self hosted web app to track and rate a user's watched movies. Prior to version 0.71.1, an ordinary authenticated user can access the user-management endpoints /settings/users and use them to enumerate all users and create a new administrator account. This happens because the route...

EUVD-2026-23182

The Riaxe Product Customizer plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.1.2. This is due to the plugin registering a REST API route at POST /wp-json/InkXEProductDesignerLite/customer/deletecustomer without a permissioncallback, causing...