Weakness (CWE)
CWE-287: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How to prevent it (1 mitigation)
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Architecture and Design
Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Source: MITRE CWE-287
871 results · Clear filters · Feed
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Medium 5.9
Nextcloud: Two-Factor Authentication Bypass via Pending Session Token Replay
Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.9, and 33.0.0 to before 33.0.3, an authentication bypass vulnerability allowed attackers with knowledge of a user's password to circumvent two-…
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Medium 6.3
Nextcloud: Files Lock app allows users to lock and unlock files of other users
Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.2, and 33.0.0 to before 33.0.1, the files_lock app did not properly validate the ownership of files when processing DAV lock and unlock request…
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Medium 4.6
Nextcloud: PIN bypass in PassCodeActivity via back button
Nextcloud is an open source content collaboration platform. From version 33.0.0 to before version 33.1.0, after unlocking a locked Android phone the back-button could be used to bypass the Nextcloud Files app PIN. This issue has been patched in version 33.1.0.
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Medium 5.3
CVE-2026-9091
Casdoor versions 2.362.0 and earlier contain a logic flaw in the social‑login binding flow that allows users to bypass configured MFA requirements. The binding‑rule code path in controllers/auth.go calls HandleLoggedIn directly without invoking checkMfaEnable…
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Medium 6.9
OpenLearnX: Critical Authentication Bypass via JWT Signature Verification Disabled Leading to Account Takeover
OpenLearnX is an open-source, decentralized learning and assessment platform. Prior to 2.0.4, a critical authentication vulnerability was identified in OpenLearnX that could allow unauthorized access to user accounts under specific conditions. This vulnerabil…
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Medium 5.5
SpSoft AppLock (com.sp.protector.free) 7.9.40 for Android allows a local attacker with physical access to bypass finger…
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Medium 6.8
Chatwoot: Pre-Account Takeover via OAuth on Unconfirmed Accounts
Chatwoot is a customer engagement suite. From 2.14.0 to before 4.13.0, a Pre-Account Takeover (Pre-ATO) vulnerability existed in Chatwoot's authentication flow. Because email confirmation was not enforced before an account became usable, an attacker could pre…
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Medium 5.6
ItzCrazyKns Vane API route.ts missing authentication
A security vulnerability has been detected in ItzCrazyKns Vane up to 1.12.1. Affected by this issue is some unknown functionality of the file route.ts of the component API. The manipulation leads to missing authentication. The attack may be initiated remotely…
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Medium 6.5
TypeBot: WhatsApp Webhook Endpoint Missing Signature Verification
TypeBot is a chatbot builder tool. In versions 3.16.0 and prior, the WhatsApp Cloud API webhook endpoint (POST /v1/workspaces/{workspaceId}/whatsapp/{credentialsId}/webhook) does not verify the x-hub-signature-256 HMAC signature included by Meta in every webh…
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Medium 6.4
Authentication bypass via admin auth user
An authentication bypass vulnerability in Netatalk 2.2.2 through 4.4.2 allows a remote privileged user to authenticate as an arbitrary user via the admin auth user mechanism.
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Medium 5.3
Improper Authentication issue in ArcGIS Server
ArcGIS Server contains an improper authentication vulnerability in an undocumented administrative endpoint. An unauthenticated attacker could exploit this issue by sending a crafted request to the endpoint. Successful exploitation may result in disruption of …
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Medium 6.0
MISP OIDC authentication bypass via automatic email-based account linking under insecure IdP configurations
MISP’s OIDC authentication plugin allowed automatic linking of an OIDC identity to an existing local user account based on the email claim when the local account had no stored sub value. Under insecure or untrusted IdP configurations where email ownership is …
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Medium 5.3
Apache OFBiz: Cookie Manipulation Allows Authenticated JWT Forgery and Account Impersonation
Improper Authentication vulnerability in Apache OFBiz. This issue affects Apache OFBiz: before 24.09.06. Users are recommended to upgrade to version 24.09.06, which fixes the issue.
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Medium 5.3
Sanluan PublicCMS Trade Address Query TradeAddressListDirective.java execute missing authentication
A weakness has been identified in Sanluan PublicCMS 5.202506.d. This issue affects the function execute of the file publiccms-trade/src/main/java/com/publiccms/views/directive/trade/TradeAddressListDirective.java of the component Trade Address Query Handler. …
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Medium —
slack-go `SecretsVerifier` accepts empty signing secret without precondition
`SecretsVerifier` in slack-go/slack before v0.23.1 accepts an empty signing secret without error. If an application is misconfigured (e.g., an unset or empty `SLACK_SIGNING_SECRET`), `NewSecretsVerifier` builds an HMAC-SHA256 keyed with an empty string, allow…
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Medium 6.1CVE-2026-44166 Public exploit
Pocketbase: Account pre-hijacking via OAuth2 unverfied->verified autolinking upgrade
Pocketbase is an open source web backend written in go. Prior to 0.22.42 and 0.37.4, in some situations, if an attacker knows the email address of the victim they can create and link an unverified PocketBase user in advance by authenticating with one of the O…
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Medium 5.3
OpenClaw < 2026.4.22 - Authentication Bypass in Gateway Control UI Bootstrap Config Endpoint
OpenClaw before 2026.4.22 contains an authentication bypass vulnerability in the Control UI bootstrap config endpoint that allows unauthenticated attackers to read sensitive configuration fields. Attackers can access the bootstrap config route without a valid…
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Medium 5.3
Industrial Application Software IAS Canias ERP Login RMI improper authentication
A vulnerability was identified in Industrial Application Software IAS Canias ERP 8.03. This impacts an unknown function of the component Login RMI Interface. The manipulation of the argument clientVersion leads to improper authentication. It is possible to in…
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Medium 5.3
Industrial Application Software IAS Canias ERP RMI doAction improper authentication
A vulnerability was found in Industrial Application Software IAS Canias ERP 8.03. This affects the function doAction of the component RMI Interface. The manipulation of the argument sessionId results in improper authentication. It is possible to launch the at…
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Medium 6.3
UGREEN CM933 Administrative missing authentication
A security vulnerability has been detected in UGREEN CM933 1.1.59.4319. The impacted element is an unknown function of the component Administrative Interface. Such manipulation leads to missing authentication. The attack requires being on the local network. Y…
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Medium 6.8
Admidio: OIDC Token Introspection Endpoint Returns Active for All Tokens Without Validation
Admidio is an open-source user management solution. Prior to version 5.0.9, the OIDC token introspection endpoint (/modules/sso/index.php/oidc/introspect) always returns {"active": true} for every request, regardless of whether a valid token is provided, whet…
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Medium 5.3
PicoTronica e-Clinic Healthcare System ECHS API Endpoint patient-records missing authentication
A vulnerability was detected in PicoTronica e-Clinic Healthcare System ECHS 5.7. The affected element is an unknown function of the file /cdemos/echs/api/v2/patient-records of the component API Endpoint. The manipulation results in missing authentication. The…
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Medium 6.3
chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication
A vulnerability was detected in chatchat-space Langchain-Chatchat up to 0.3.1.3. This vulnerability affects the function files/list_files/retrieve_file/retrieve_file_content/delete_file of the file libs/chatchat-server/chatchat/server/api_server/openai_routes…
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Medium 5.3
PrefectHQ prefect Health Check API health endswith improper authentication
A vulnerability was detected in PrefectHQ prefect up to 3.6.21. This impacts the function endswith of the file /api/health of the component Health Check API. Performing a manipulation results in improper authentication. The attack is possible to be carried ou…
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Medium 6.5
crocodilestick Calibre-Web-Automated Admin Endpoint cwa_functions.py missing authentication
A flaw has been found in crocodilestick Calibre-Web-Automated up to 4.0.6. Affected by this issue is some unknown functionality of the file cps/cwa_functions.py of the component Admin Endpoint. This manipulation causes missing authentication. It is possible t…
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Medium 4.3
OpenClaw 2026.2.19 through 2026.3.30 - Webhook Replay Dedupe Cache Event Suppression via Shared Authentication
OpenClaw versions 2026.2.19 before 2026.3.31 contain an improper cache isolation vulnerability in the Zalo webhook replay-dedupe mechanism that is shared across authenticated webhook targets. Attackers controlling one authenticated Zalo webhook path in multi-…
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Medium 6.5
Apache Storm Client: Anonymous principal assigned on TLS client certificate verification failure
Improper Handling of TLS Client Authentication Failure Leading to Anonymous Principal Assignment in Apache Storm Versions Affected: up to 2.8.7 Description: When TLS transport is enabled in Apache Storm without requiring client certificate authentication (the…
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Medium 5.6
NousResearch hermes-agent Webhooks Endpoint webhook.py missing authentication
A vulnerability was found in NousResearch hermes-agent 0.8.0. Affected by this issue is some unknown functionality of the file gateway/platforms/webhook.py of the component Webhooks Endpoint. The manipulation of the argument _INSECURE_NO_AUTH results in missi…
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Medium 5.6
NousResearch hermes-agent API_SERVER_KEY api_server.py _check_auth improper authentication
A vulnerability has been found in NousResearch hermes-agent 0.8.0. Affected by this vulnerability is the function _check_auth of the file gateway/platforms/api_server.py of the component API_SERVER_KEY Handler. The manipulation leads to improper authenticatio…
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Medium 4.8
Axios: Authentication Bypass via Prototype Pollution Gadget in `validateStatus` Merge Strategy
Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution to silently suppress all HTTP error responses (40…
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Medium 6.5
frp: Authentication bypass in frp HTTP vhost routing when routeByHTTPUser is used for access control
frp is a fast reverse proxy. From 0.43.0 to 0.68.0, frp contains an authentication bypass in the HTTP vhost routing path when routeByHTTPUser is used as part of access control. In proxy-style requests, the routing logic uses the username from Proxy-Authorizat…
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Medium 6.3
HKUDS OpenHarness Session Key Collision Privilege Escalation
HKUDS OpenHarness prior to PR #159 remediation contains a session key derivation vulnerability that allows authenticated participants in shared chats or threads to hijack other users' sessions by exploiting a shared ohmo session key that lacks sender identity…
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Medium 6.5
serge-chat serge Model API Endpoint model.py delete_model missing authentication
A weakness has been identified in serge-chat serge up to 1.4TB. The impacted element is the function download_model/delete_model of the file api/src/serge/routers/model.py of the component Model API Endpoint. Executing a manipulation can lead to missing authe…
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Medium 6.5
liangliangyy DjangoBlog Clean Endpoint views.py missing authentication
A weakness has been identified in liangliangyy DjangoBlog up to 2.1.0.0. This impacts an unknown function of the file blog/views.py of the component Clean Endpoint. This manipulation causes missing authentication. The attack may be initiated remotely. The exp…
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Medium 6.6
Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 8.4 through 8.5 con…
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Medium 6.6
Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 8.4 through 8.5 con…
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Medium 6.2
Active Directory Spoofing Vulnerability
Improper authentication in Windows Active Directory allows an unauthorized attacker to perform spoofing locally.
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Medium 6.7
A improper authentication vulnerability in Fortinet FortiSOAR PaaS 7.6.0 through 7.6.3, FortiSOAR PaaS 7.5.0 through 7.…
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Medium 6.9
ajenti.plugin.core has a race conditions in 2FA
ajenti.plugin.core defines all necessary core elements to allow Ajenti to run properly. Prior to 0.112, if the 2FA was activated, it was possible during a short moment after the authentication of an user to bypass its authentication. This vulnerability is fix…
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Medium 5.3
Customer Reviews for WooCommerce <= 5.103.0 - Unauthenticated Authentication Bypass to Arbitrary Review Submission via 'key' Parameter
The Customer Reviews for WooCommerce plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 5.103.0. This is due to the `create_review_permissions_check()` function comparing the user-supplied `key` parameter against…