Common Weakness Enumeration
CWE-287
DiscouragedImproper Authentication
Abstraction: Class · Status: Draft
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
6978 vulnerabilities reference this CWE, most recent first.
CVE-2026-100709 (GCVE-0-2026-100709)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:24 – Updated: 2026-09-26 23:08
VLAI
EPSS
VEX
Title
Froxlor before 2.3.12 2FA Bypass via Namespace Confusion
Summary
Froxlor through 2.3.10 stores only a numeric user ID in remembered-2FA tokens (panel_2fa_tokens) without recording the account namespace, and the remembered-token lookup during login is not constrained to the customer or administrator account type. Because customer and administrator IDs are allocated from separate namespaces, a remembered-2FA token legitimately issued to a customer with a given ID also matches an administrator with the same ID. An attacker who controls a customer account with a colliding ID, holds a valid remembered-2FA cookie for it, and already knows the target administrator's password can bypass the administrator's TOTP second factor and obtain an authenticated administrator session. This is a second-factor bypass only; it does not defeat password authentication. Fixed in 2.3.12.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-26 23:08 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/froxlor/froxlor/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/froxlor-befo… | third-party-advisory |
Impacted products
Date Public
2026-09-06 00:00
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CVE-2026-100684 (GCVE-0-2026-100684)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-10-08 15:21
VLAI
EPSS
VEX
Title
Budibase Server 3.41.0 before 3.45.0 Authentication Bypass via OIDC
Summary
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Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 16:36 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Budibase/budibase/security/adv… | vendor-advisory |
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Impacted products
Date Public
2026-09-10 00:00
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CVE-2026-100607 (GCVE-0-2026-100607)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:22 – Updated: 2026-09-28 17:07
VLAI
EPSS
VEX
Title
Flowise through 3.1.4 Authentication Bypass via Email-Only SSO
Summary
Flowise through 3.1.4 resolves SSO and local-password users solely by email without storing provider or subject identifier bindings, allowing attackers to authenticate as any existing user by claiming their email at any configured SSO provider. Attackers can gain complete account access including chatflows, credentials, and API keys by authenticating through a different SSO provider or local password than the victim's original registration method.
Severity
7.7 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 17:07 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FlowiseAI/Flowise/security/adv… | vendor-advisory |
| https://www.vulncheck.com/advisories/flowise-thro… | third-party-advisory |
Impacted products
Date Public
2026-09-10 00:00
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CVE-2026-100606 (GCVE-0-2026-100606)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:22 – Updated: 2026-09-28 19:10
VLAI
EPSS
VEX
Title
Flowise through 3.1.4 Authentication Bypass via SSO Email Match
Summary
Flowise through 3.1.4 (Enterprise/platform mode with SSO enabled) contains an authentication bypass in the SSO login path. When an SSO callback arrives with an email matching a user whose status is INVITED, verifyAndLogin (SSOBase.ts:80-94) copies the user record from the database — including the server-stored single-use invitation tempToken — into the data passed to AccountService.register(). The register handler's token lookup, email match, and expiry checks therefore pass trivially against the server's own token instead of a caller-supplied one, and the account and its organization membership are flipped to ACTIVE. As a result, anyone able to authenticate at any configured SSO provider using a pending invitee's email address as the email claim can take over that invitation and obtain the invited user's access to the organization without ever possessing the emailed invitation token, for as long as the invitation is valid (24 hours by default). At the time of the advisory no patched version was available.
Severity
7.7 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 19:08 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FlowiseAI/Flowise/security/adv… | vendor-advisory |
| https://www.vulncheck.com/advisories/flowise-thro… | third-party-advisory |
Impacted products
Date Public
2026-09-10 00:00
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CVE-2026-100169 (GCVE-0-2026-100169)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:01 – Updated: 2026-10-16 15:31 X_Open Source
VLAI
EPSS
VEX
Title
Account pre-hijacking in the Prowler API through email based social account linking without verification
Summary
Improper Authentication in the social account linking path of the Prowler API in Prowler from 5.4.0 before 5.35.0 allows a remote unauthenticated attacker to obtain persistent access to the account of a user who has not yet registered, because ProwlerSocialAccountAdapter.pre_social_login() in api/src/backend/api/adapters.py links a Google or GitHub login to any existing local account that has the same email address as the one returned by the provider, without requiring that the address has been verified by the provider or on the existing account, and without any other check that both accounts belong to the same person. Self registration is open and the new account is usable at once, because UserViewSet.get_permissions() in api/src/backend/api/v1/views.py grants AllowAny to the create action, ACCOUNT_EMAIL_VERIFICATION is set to none in api/src/backend/config/settings/social_login.py, and the Django ModelBackend checks only the password and is_active, not the django-allauth EmailAddress record. An attacker who registers an email address before its owner keeps the password set at registration after the link is made, because sociallogin.connect() does not reset the password and does not disable the existing account, and the owner who later signs in with Google or GitHub is logged into the attacker's account. django-allauth makes the same email based link on its own, because SOCIALACCOUNT_EMAIL_AUTHENTICATION and SOCIALACCOUNT_EMAIL_AUTHENTICATION_AUTO_CONNECT are both set to True in the same settings module. This gives the attacker the cloud provider credentials, scan findings and tenant memberships held in the account.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 15:25 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/prowler-cloud/prowler/commit/0… | patch |
| https://github.com/prowler-cloud/prowler/pull/12013 | patch |
| https://github.com/prowler-cloud/prowler/releases… | release-notes |
| https://github.com/prowler-cloud/prowler/security… | related |
| https://secur0.com/en/cna/cve-list/cve-2026-10016… | third-party-advisorytechnical-description |
Impacted products
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CVE-2026-100163 (GCVE-0-2026-100163)
Vulnerability from cvelistv5 – Published: 2026-10-14 07:43 – Updated: 2026-10-14 17:41
VLAI
EPSS
VEX
Title
Appointment Booking Plugin <= 5.7.2 - Unauthenticated Authentication Bypass to Customer Account Takeover via Insufficient Verification in create_wp_user_for_customer() username_exists Fallback
Summary
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Authentication Bypass in versions up to, and including, 5.7.2 via the OsCustomerHelper::create_wp_user_for_customer() helper reached from the public process_step_customer() booking step. When the 'Use WordPress users as customers' option is enabled, the helper falls back from email_exists() to username_exists( $customer->email ), which matches any WordPress user whose user_login equals the victim customer's email even when that user's user_email is completely different, and links that WordPress user's ID into the victim's LatePoint customer row (only privileged roles are excluded; Subscriber is allowed). This makes it possible for authenticated attackers, with Subscriber-level access and above, to take over another customer's LatePoint account — accessing their bookings, service, agent, and calendar data, and having the victim customer's email overwritten with the attacker's on next login — by holding a Subscriber account whose user_login equals the victim's email and submitting an unauthenticated public booking step registration request.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 17:40 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
7 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| latepoint | Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress |
Affected:
0 , ≤ 5.7.2
(semver)
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CVE-2026-97879 (GCVE-0-2026-97879)
Vulnerability from cvelistv5 – Published: 2026-09-25 16:45 – Updated: 2026-09-25 17:02
VLAI
EPSS
VEX
Title
zhistaredu StarTraining api-docs Endpoint SecurityConfig.java missing authentication
Summary
A security flaw has been discovered in zhistaredu StarTraining up to 3.8.1. The affected element is an unknown function of the file SecurityConfig.java of the component api-docs Endpoint. Performing a manipulation results in missing authentication. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 17:02 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/409900 | vdb-entry |
| https://vuldb.com/vuln/409900/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-97879 | third-party-advisory |
| https://vuldb.com/submit/913577 | third-party-advisory |
| https://github.com/ArrestX/startraining-advisorie… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zhistaredu | StarTraining |
Affected:
3.8.0
Affected: 3.8.1 cpe:2.3:a:zhistaredu:startraining:*:*:*:*:*:*:*:* |
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CVE-2026-97878 (GCVE-0-2026-97878)
Vulnerability from cvelistv5 – Published: 2026-09-25 16:30 – Updated: 2026-09-25 17:48
VLAI
EPSS
VEX
Title
zhistaredu StarTraining Druid Console index.html anonymous missing authentication
Summary
A vulnerability was identified in zhistaredu StarTraining up to 3.8.1. Impacted is the function anonymous of the file /druid/index.html of the component Druid Console. Such manipulation leads to missing authentication. The attack may be performed from remote. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 17:48 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/409899 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/409899/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-97878 | third-party-advisory |
| https://vuldb.com/submit/913576 | third-party-advisory |
| https://github.com/ArrestX/startraining-advisorie… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zhistaredu | StarTraining |
Affected:
3.8.0
Affected: 3.8.1 cpe:2.3:a:zhistaredu:startraining:*:*:*:*:*:*:*:* |
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CVE-2026-97864 (GCVE-0-2026-97864)
Vulnerability from cvelistv5 – Published: 2026-09-25 13:00 – Updated: 2026-09-25 13:52 X_Open Source
VLAI
EPSS
VEX
Title
GibbonEdu Gibbon Unit Planner units_add_blockAjax.php makeBlock missing authentication
Summary
A vulnerability has been found in GibbonEdu Gibbon up to 30.0.01. The affected element is the function makeBlock of the file modules/Planner/units_add_blockAjax.php of the component Unit Planner. The manipulation of the argument gibbonUnitBlockID/mode leads to missing authentication. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 31.0.00 is sufficient to fix this issue. The identifier of the patch is 07e719368eae8dfb4e22e19424ceab6074164ebc. It is recommended to upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 13:51 UTC
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/409878 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/409878/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-97864 | third-party-advisory |
| https://vuldb.com/submit/911004 | third-party-advisory |
| https://github.com/GibbonEdu/core/pull/2090 | issue-trackingpatch |
| https://github.com/GibbonEdu/core/pull/2095 | issue-trackingpatch |
| https://github.com/GibbonEdu/core/commit/07e71936… | patch |
| https://github.com/GibbonEdu/core/compare/v31.0.00 | patch |
Impacted products
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CVE-2026-97846 (GCVE-0-2026-97846)
Vulnerability from cvelistv5 – Published: 2026-09-25 06:16 – Updated: 2026-09-25 13:53
VLAI
EPSS
VEX
Title
Keycloak-services: keycloak-services: standard token exchange v2 bypasses mtls holder-of-key binding
Summary
Keycloak provides a feature called mTLS holder-of-key binding which ensures that a token can only be used by the client that originally requested it by binding it to their digital certificate. A flaw was discovered where the new Standard Token Exchange V2 feature does not check for this certificate. This allows an attacker with stolen client credentials to obtain a standard, unrestricted token that bypasses these security protections.
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 13:52 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-97846 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2540949 | issue-trackingx_refsource_REDHAT |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Build of Keycloak |
cpe:/a:redhat:build_keycloak:
|
|
| Red Hat | Red Hat Single Sign-On 7 |
cpe:/a:redhat:red_hat_single_sign_on:7
|
Date Public
2026-09-24 16:58
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Mitigation
Architecture and Design
Strategy: Libraries or Frameworks
Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
CAPEC-114: Authentication Abuse
An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker.
CAPEC-115: Authentication Bypass
An attacker gains access to application, service, or device with the privileges of an authorized or privileged user by evading or circumventing an authentication mechanism. The attacker is therefore able to access protected data without authentication ever having taken place.
CAPEC-151: Identity Spoofing
Identity Spoofing refers to the action of assuming (i.e., taking on) the identity of some other entity (human or non-human) and then using that identity to accomplish a goal. An adversary may craft messages that appear to come from a different principle or use stolen / spoofed authentication credentials.
CAPEC-194: Fake the Source of Data
An adversary takes advantage of improper authentication to provide data or services under a falsified identity. The purpose of using the falsified identity may be to prevent traceability of the provided data or to assume the rights granted to another individual. One of the simplest forms of this attack would be the creation of an email message with a modified "From" field in order to appear that the message was sent from someone other than the actual sender. The root of the attack (in this case the email system) fails to properly authenticate the source and this results in the reader incorrectly performing the instructed action. Results of the attack vary depending on the details of the attack, but common results include privilege escalation, obfuscation of other attacks, and data corruption/manipulation.
CAPEC-22: Exploiting Trust in Client
An attack of this type exploits vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by communicating directly with the server where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
CAPEC-57: Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to obtain sensitive data once SSL is terminated.
CAPEC-593: Session Hijacking
This type of attack involves an adversary that exploits weaknesses in an application's use of sessions in performing authentication. The adversary is able to steal or manipulate an active session and use it to gain unathorized access to the application.
CAPEC-633: Token Impersonation
An adversary exploits a weakness in authentication to create an access token (or equivalent) that impersonates a different entity, and then associates a process/thread to that that impersonated token. This action causes a downstream user to make a decision or take action that is based on the assumed identity, and not the response that blocks the adversary.
CAPEC-650: Upload a Web Shell to a Web Server
By exploiting insufficient permissions, it is possible to upload a web shell to a web server in such a way that it can be executed remotely. This shell can have various capabilities, thereby acting as a "gateway" to the underlying web server. The shell might execute at the higher permission level of the web server, providing the ability the execute malicious code at elevated levels.
CAPEC-94: Adversary in the Middle (AiTM)
An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.