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Common Weakness Enumeration

CWE-384

Allowed

Session Fixation

Abstraction: Compound · Status: Incomplete

Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.

572 vulnerabilities reference this CWE, most recent first.

CVE-2026-23624 (GCVE-0-2026-23624)

Vulnerability from cvelistv5 – Published: 2026-02-04 17:15 – Updated: 2026-02-04 19:56
VLAI
Title
GLPI is vulnerable to session stealing on externally authenticated user change
Summary
GLPI is a free asset and IT management software package. In versions starting from 0.71 to before 10.0.23 and before 11.0.5, when remote authentication is used, based on SSO variables, a user can steal a GLPI session previously opened by another user on the same machine. This issue has been patched in versions .
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-04 19:56 UTC
CWE
Impacted products
Vendor Product Version
glpi-project glpi Affected: >= 0.71, < 10.0.23
Affected: >= 11.0.0-alpha, < 11.0.5
Create a notification for this product.
Show details on NVD website

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CVE-2026-22082 (GCVE-0-2026-22082)

Vulnerability from cvelistv5 – Published: 2026-01-09 11:24 – Updated: 2026-01-09 16:26
VLAI
Title
Insecure Session ID Management Vulnerability in Tenda Wireless Routers
Summary
This vulnerability exists in Tenda wireless routers (300Mbps Wireless Router F3 and N300 Easy Setup Router) due to the use of login credentials as the session ID through its web-based administrative interface. A remote attacker could exploit this vulnerability by intercepting network traffic and capturing the session ID during insecure transmission. Successful exploitation of this vulnerability could allow the attacker to hijack an authenticated session and compromise sensitive configuration information on the targeted device.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-09 16:25 UTC
CWE
References
Impacted products
Vendor Product Version
Tenda 300Mbps Wireless Router F3 and N300 Easy Setup Router Affected: F3 v3.0 Firmware V12.01.01.41
Affected: F3 v3.0 Firmware V12.01.01.42
Affected: F3 v3.0 Firmware V12.01.01.48
Affected: F3 v3.0 Firmware V12.01.01.52
Affected: F3 v3.0 Firmware V12.01.01.55
Affected: F3 v4.0 Firmware V03.03.01.40
Create a notification for this product.
Show details on NVD website

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GCVE-1-2026-20200 (CVE-2026-81826)

Vulnerability from gna-1 – Published: 2026-08-27 13:32 – Updated: 2026-08-27 13:32
VLAI
Title
Flowintel Fails to Invalidate Active Sessions After Password Change
Summary
Affected versions of Flowintel do not revoke existing authenticated sessions when a user’s password is changed. This means that if an attacker already possesses a valid session—for example, from prior access or a stolen session token—the victim changing their password does not terminate that attacker’s access. The session remains usable until it expires naturally. The upstream commit describes this directly as: “session keeps working until it expires.” The fix detects password changes and explicitly invokes _invalidate_user_sessions(user.id) after the database update. This is applied in both edit_user_core() and admin_edit_user_core(). Version impacted >=3.3.0
CWE
  • CWE-613 - Insufficient Session Expiration
  • CWE-384 - Session Fixation
Assigner
GNA-1 This instance
References
Impacted products
Vendor Product Version
flowintel flowintel Affected: 0 , ≤ 3.3.0 (semver)
Create a notification for this product.

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GCVE-1-2026-20184 (CVE-2026-85238)

Vulnerability from gna-1 – Published: 2026-09-03 15:29 – Updated: 2026-09-03 15:30
VLAI
Title
Session Fixation in MISP CustomAuth Authentication Allows Session Hijacking
Summary
MISP contains a session fixation vulnerability in the CustomAuth authentication (a custom configuration) flow. When a user was successfully authenticated through CustomAuth, MISP stored the authenticated user identity in the existing session without first rotating the session identifier. As a result, if an attacker can cause a victim to use a session identifier known to the attacker before authentication, that same session identifier remains valid after the victim successfully authenticates. The attacker could subsequently reuse the fixed session identifier to access the victim's authenticated MISP session, potentially gaining the privileges associated with the victim's account. The issue occurs because __customAuthentication() wrote the authenticated user into the existing CakePHP session while the call to Session->renew() had previously been disabled. The patch restores session identifier rotation when a new authentication occurs or when the authenticated user changes, while avoiding unnecessary session renewal on every request.
CWE
Assigner
GNA-1 This instance
References
Impacted products
Vendor Product Version
misp misp Affected: 0 , ≤ 2.5.45 (semver)
Create a notification for this product.

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GCVE-1-2026-20091 (CVE-2026-56425)

Vulnerability from gna-1 – Published: 2026-06-22 12:21 – Updated: 2026-06-22 12:24
VLAI
Title
MISP AAD authentication plugin - Improper OAuth State Handling, Missing Session Rotation, Insecure Redirect URI Validation, and Log Injection
Summary
The Azure Active Directory (AAD) authentication implementation contained multiple weaknesses in its OAuth 2.0 authorization flow that could allow attackers to bypass important security guarantees provided by the protocol. The application used the PHP session identifier (session_id()) as the OAuth state parameter. Because session identifiers are long-lived authentication credentials, exposing them in OAuth redirect URLs could leak valid session tokens through browser history, HTTP Referer headers, reverse proxies, access logs, or third-party infrastructure involved in the authentication flow. If obtained by an attacker, the leaked session identifier could potentially be used for session hijacking. Additionally, the implementation did not regenerate the session identifier after successful authentication, leaving authenticated sessions susceptible to session fixation attacks where an attacker forces a victim to use a known session identifier before login and later reuses that identifier after authentication. The OAuth state value was also not implemented as a dedicated, single-use nonce. This weakened CSRF protections and increased the risk of replay attacks against the OAuth callback process. The authentication flow further failed to enforce HTTPS for the configured OAuth redirect URI. If a non-HTTPS redirect URI was used, OAuth authorization codes and access tokens could traverse the network in plaintext, exposing sensitive credentials to network attackers. Finally, OAuth error responses containing attacker-controlled GET parameters were logged verbatim. An attacker could inject control characters or crafted log content, leading to log forging, log injection, or corruption of audit records. The fix introduces: * A dedicated cryptographically random OAuth state value. * Single-use state validation and invalidation. * Constant-time state comparison using hash_equals(). * Session identifier rotation after successful authentication. * Enforcement of HTTPS-only redirect URIs. * Sanitized and length-limited logging of OAuth error parameters. AAD Authentication Plugin (OAuth 2.0 / Azure Active Directory integration)
CWE
Assigner
GNA-1 This instance
References
Impacted products
Vendor Product Version
misp misp Affected: 0 , ≤ 2.5.41 (semver)
Create a notification for this product.

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CVE-2026-18527 (GCVE-0-2026-18527)

Vulnerability from cvelistv5 – Published: 2026-08-28 20:48 – Updated: 2026-08-31 18:46
VLAI
Title
IBM Application Runtime Expert (ARE) for IBM i is vulnerable to a user gaining elevated privileges and sensitive information [, ].
Summary
IBM Administration Runtime Expert for i 1R1M0 IBM Application Runtime Expert (ARE) for i could allow a remote attacker to gain elevated privileges, caused by ARE GUI component processing. An unauthenticated attacker can exploit this vulnerability to execute actions under another user's authenticated profile gaining elevated privileges on the IBM i system.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 18:45 UTC
CWE
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7284580 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM Administration Runtime Expert for i Affected: 1R1M0
    cpe:2.3:a:ibm:administration_runtime_expert_for_i:1r1m0:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-16496 (GCVE-0-2026-16496)

Vulnerability from cvelistv5 – Published: 2026-07-28 17:57 – Updated: 2026-07-28 18:43
VLAI
Title
terraform-mcp-server vulnerable to cross-user credential inheritance if an MCP session ID is obtained by another user
Summary
The terraform-mcp-server before version 1.1.0 is vulnerable to an authorization bypass in the streamable-HTTP stateful transport mode that may allow a user who obtains another user's MCP session ID to have their tool calls executed using that user's Terraform credentials. This vulnerability, CVE-2026-16496, is fixed in terraform-mcp-server 1.1.0.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 18:42 UTC
CWE
Impacted products
Vendor Product Version
HashiCorp Tooling Affected: 0.3.0 , < 1.1.0 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-14609 (GCVE-0-2026-14609)

Vulnerability from cvelistv5 – Published: 2026-07-03 20:15 – Updated: 2026-07-06 16:52 X_Freeware
VLAI
Title
SourceCodester CET Automated Grading System with AI Predictive Analytics session fixiation
Summary
A vulnerability was detected in SourceCodester CET Automated Grading System with AI Predictive Analytics 1.0. This issue affects some unknown processing. The manipulation results in session fixiation. The attack can be executed remotely. The attack requires a high level of complexity. The exploitability is assessed as difficult. The exploit is now public and may be used.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 16:05 UTC
CWE
References
Impacted products
Vendor Product Version
SourceCodester CET Automated Grading System with AI Predictive Analytics Affected: 1.0
    cpe:2.3:a:sourcecodester:cet_automated_grading_system_with_ai_predictive_analytics:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-13707 (GCVE-0-2026-13707)

Vulnerability from cvelistv5 – Published: 2026-07-01 14:32 – Updated: 2026-07-01 15:46
VLAI
Title
Session fixation attacks on improperly configured OAuth 1.0a tools
Summary
Session fixation vulnerability in Wikimedia Foundation OAuth. This vulnerability is associated with program files src/Backend/MWOAuthServer.Php. This issue affects OAuth: from * through 1.46.0, 1.45.4, 1.44.6, 1.43.9.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-01 15:46 UTC
CWE
References
Impacted products
Vendor Product Version
Wikimedia Foundation OAuth Affected: * , ≤ 1.46.0, 1.45.4, 1.44.6, 1.43.9 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-12581 (GCVE-0-2026-12581)

Vulnerability from cvelistv5 – Published: 2026-06-22 09:30 – Updated: 2026-06-22 10:26
VLAI
Title
Digiwin|EasyFlow .NET - Session Fixation
Summary
EasyFlow .NET developed by Digiwin has a Session Fixation vulnerability. If unauthenticated remote attackers replace a specific session ID for a user, they can gain the user's privilege once the user logs in.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 10:25 UTC
CWE
References
Impacted products
Vendor Product Version
Digiwin EasyFlow .NET Affected: 0 , ≤ 8.1.4 (custom)
Create a notification for this product.
Date Public
2026-06-22 09:28
Show details on NVD website

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Mitigation
Architecture and Design

Invalidate any existing session identifiers prior to authorizing a new user session.

Mitigation
Architecture and Design

For platforms such as ASP that do not generate new values for sessionid cookies, utilize a secondary cookie. In this approach, set a secondary cookie on the user's browser to a random value and set a session variable to the same value. If the session variable and the cookie value ever don't match, invalidate the session, and force the user to log on again.

Mitigation MIT-29
Operation

Strategy: Firewall

Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].

CAPEC-196: Session Credential Falsification through Forging

An attacker creates a false but functional session credential in order to gain or usurp access to a service. Session credentials allow users to identify themselves to a service after an initial authentication without needing to resend the authentication information (usually a username and password) with every message. If an attacker is able to forge valid session credentials they may be able to bypass authentication or piggy-back off some other authenticated user's session. This attack differs from Reuse of Session IDs and Session Sidejacking attacks in that in the latter attacks an attacker uses a previous or existing credential without modification while, in a forging attack, the attacker must create their own credential, although it may be based on previously observed credentials.

CAPEC-21: Exploitation of Trusted Identifiers

An adversary guesses, obtains, or "rides" a trusted identifier (e.g. session ID, resource ID, cookie, etc.) to perform authorized actions under the guise of an authenticated user or service.

CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies

This attack relies on the use of HTTP Cookies to store credentials, state information and other critical data on client systems. There are several different forms of this attack. The first form of this attack involves accessing HTTP Cookies to mine for potentially sensitive data contained therein. The second form involves intercepting this data as it is transmitted from client to server. This intercepted information is then used by the adversary to impersonate the remote user/session. The third form is when the cookie's content is modified by the adversary before it is sent back to the server. Here the adversary seeks to convince the target server to operate on this falsified information.

CAPEC-39: Manipulating Opaque Client-based Data Tokens

In circumstances where an application holds important data client-side in tokens (cookies, URLs, data files, and so forth) that data can be manipulated. If client or server-side application components reinterpret that data as authentication tokens or data (such as store item pricing or wallet information) then even opaquely manipulating that data may bear fruit for an Attacker. In this pattern an attacker undermines the assumption that client side tokens have been adequately protected from tampering through use of encryption or obfuscation.

CAPEC-59: Session Credential Falsification through Prediction

This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

CAPEC-60: Reusing Session IDs (aka Session Replay)

This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.

CAPEC-61: Session Fixation

The attacker induces a client to establish a session with the target software using a session identifier provided by the attacker. Once the user successfully authenticates to the target software, the attacker uses the (now privileged) session identifier in their own transactions. This attack leverages the fact that the target software either relies on client-generated session identifiers or maintains the same session identifiers after privilege elevation.