Weakness (CWE)
CWE-384: Session Fixation
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.
More detail
Such a scenario is commonly observed when:
- A web application authenticates a user without first invalidating the existing session, thereby continuing to use the session already associated with the user.
- An attacker is able to force a known session identifier on a user so that, once the user authenticates, the attacker has access to the authenticated session.
- The application or container uses predictable session identifiers.
In the generic exploit of session fixation vulnerabilities, an attacker creates a new session on a web application and records the associated session identifier. The attacker then causes the victim to associate, and possibly authenticate, against the server using that session identifier, giving the attacker access to the user's account through the active session.
How to prevent it (3 mitigations)
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Architecture and Design
Invalidate any existing session identifiers prior to authorizing a new user session.
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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.
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Operation
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].
Source: MITRE CWE-384
330 results · Feed
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Medium 6.9
Ollama vulnerable to Cross-Domain Token Exposure
Cross-Domain Token Exposure in server.auth.getAuthorizationToken in Ollama 0.6.7 allows remote attackers to steal authentication tokens and bypass access controls via a malicious realm value in a WWW-Authenticate header returned by the /api/pull endpoint.
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Critical 9.8
Weak Session ID Check in the OmniAccess Stellar Web Management Interface
Successful exploitation of the vulnerability could allow an unauthenticated attacker to obtain a valid session ID with administrator privileges by spoofing the login request, potentially allowing the attacker to modify the behaviour of the access point.
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High 7.7
FileBrowser Has Insecure JWT Handling Which Allows Session Replay Attacks after Logout
File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename, and edit files. In version 2.39.0, File Browser’s authentication system issues long-lived JWT tokens that remain valid even aft…
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High 7.7
ZITADEL has broken authN and authZ in session API and resulting session tokens
ZITADEL is an open source identity management system. Starting in version 2.53.0 and prior to versions 4.0.0-rc.2, 3.3.2, 2.71.13, and 2.70.14, vulnerability in ZITADEL's session management API allows any authenticated user to update a session if they know it…
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Medium 4.2
Moodle Session Fixation allows unauthenticated users to hijack sessions via sesskey parameter
A session fixation vulnerability in Moodle 3.x through 3.11.18 allows unauthenticated attackers to hijack user sessions via the sesskey parameter. The sesskey can be obtained without authentication and reused within the OAuth2 login flow, resulting in the vic…
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High 8.8
ession-Management Failure
This vulnerability allows the successful attacker to gain unauthorized access to a configuration web page delivered by the integrated web Server of EIBPORT. This issue affects EIBPORT V3 KNX: through 3.9.8; EIBPORT V3 KNX GSM: through 3.9.8.
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High 8.0
ZITADEL Allows IdP Intent Token Reuse
The identity infrastructure software ZITADEL offers developers the ability to manage user sessions using the Session API. This API enables the use of IdPs for authentication, known as idp intents. Following a successful idp intent, the client receives an id a…
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Critical 9.8
A critical vulnerability was found in PHPGurukul User Registration & Login and User Management System V3.3 in the /logi…
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Critical 9.1
A vulnerability was found in PHPGurukul Hostel Management System 2.1 in the /hostel/change-password.php file of the use…
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High 8.2
Improper Authentication Vulnerability in Meon KYC solutions
This vulnerability exists in Meon KYC solutions due to improper handling of access and refresh tokens in certain API endpoints of authentication process. A remote attacker could exploit this vulnerability by intercepting and manipulating the responses through…
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Critical 9.8
Improper session management in Elber REBLE310 Firmware v5.5.1.R , Equipment Model: REBLE310/RX10/4ASI allows attackers …
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Critical 9.8CVE-2025-28242 Scanner template
Improper session management in the /login_ok.htm endpoint of DAEnetIP4 METO v1.25 allows attackers to execute a session…
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Low 2.3
XSS in iKSORIS
Internet Starter, one of SoftCOM iKSORIS system modules, allows for setting an arbitrary session cookie value. An attacker with an access to user's browser might set such a cookie, wait until the user logs in and then use the same cookie to take over the acco…
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High 8.3
PAN-OS: Session Fixation Vulnerability in GlobalProtect SAML Login
When configured using SAML, a session fixation vulnerability in the GlobalProtect™ login enables an attacker to impersonate a legitimate authorized user and perform actions as that GlobalProtect user. This requires the legitimate user to first click on a mali…
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High 8.0
authentik's deletion of sessions did not revoke sessions when using database session storage
authentik is an open-source identity provider. Prior to versions 2024.12.4 and 2025.2.3, when authentik was configured to use the database for session storage (which is a non-default setting), deleting sessions via the Web Interface or the API would not revok…
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Medium 6.8
Broken Authentication in SAP Business One (Service Layer)
The Service Layer in SAP Business One, allows attackers to potentially gain unauthorized access and impersonate other users in the application to perform unauthorized actions. Due to the improper session management, the attackers can elevate themselves to hig…
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Critical 9.1
Vasion Print (formerly PrinterLogic) before Virtual Appliance Host 22.0.843 Application 20.0.1923 allows Session Fixati…
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Low 3.1
Session Persistence After User-to-Bot Conversion
Mattermost versions 9.11.x <= 9.11.6, 10.4.x <= 10.4.1 fail to invalidate all active sessions when converting a user to a bot, with allows the converted user to escalate their privileges depending on the permissions granted to the bot.
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Medium 4.3
IBM OpenPages session fixation
IBM OpenPages with Watson 8.3 and 9.0 IBM OpenPages with Watson Assistant chat feature enabled the application establishes a session when a user logs in and uses chat, but the chat session is still left active after logout.
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Critical 9.8CVE-2022-40916 Public exploit
Tiny File Manager v2.4.7 and below is vulnerable to session fixation.
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Medium 5.5
HCL iAutomate is affected by a session fixation vulnerability
HCL iAutomate is affected by a session fixation vulnerability. An attacker could hijack a victim's session ID from their authenticated session.
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Medium 5.4
CVE-2025-22216 UAA Missing Zone Validation
A UAA configured with multiple identity zones, does not properly validate session information across those zones. A User authenticated against a corporate IDP can re-use their jsessionid to access other zones.
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Critical 9.3
A malicious actor can fix the session of a PAM user by tricking the user to click on a specially crafted link to the PA…
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Medium 5.3
An improper session validation allows an unauthenticated attacker to cause certain request notifications to be executed…
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High 7.1
Mailcow through 2024-11b has a session fixation vulnerability in the web panel. It allows remote attackers to set a ses…
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Critical 9.8
An issue in youdiancms v.9.5.20 and before allows a remote attacker to escalate privileges via the sessionID parameter …
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Medium 6.4
HCL MyXalytics is affected by insufficient session expiration
HCL MyXalytics is affected by a session fixation vulnerability. Cyber-criminals can exploit this by sending crafted URLs with a session token to access the victim's login session.
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Medium 6.8
HCL MyXalytics is affected by a session fixation vulnerability
HCL MyXalytics is affected by a session fixation vulnerability. Cyber-criminals can exploit this by sending crafted URLs with a session token to access the victim's login session.
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Critical 9.8
Two-factor Authentication (TFA) - Critical - Access bypass - SA-CONTRIB-2024-043
Session Fixation vulnerability in Drupal Two-factor Authentication (TFA) allows Session Fixation.This issue affects Two-factor Authentication (TFA): from 0.0.0 before 1.8.0.
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Medium 5.7
Password Pusher Allows Session Token Interception Leading to Potential Hijacking
Password Pusher is an open source application to communicate sensitive information over the web. A vulnerability has been reported in versions 1.50.3 and prior where an attacker can copy the session cookie before a user logs out, potentially allowing session …
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Medium 5.5
Broken Access Control
An attacker who can spoof the IP address and the User-Agent of a logged-in user can takeover the session because of flaws in the self-developed session management. If two users access the web interface from the same IP they are logged in as the other user.
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Critical 10.0
PHP Session Fixation
Session Fixation vulnerabilities allow an attacker to fix a users session identifier before login providing an opportunity for session takeover on a product. Affected products: ABB ASPECT - Enterprise v3.08.02; NEXUS Series v3.08.02; MATRIX Series v3.08.02
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Medium 6.8
Session Fixation in chatwoot/chatwoot
A Session Fixation vulnerability exists in chatwoot/chatwoot versions prior to 2.4.0. The application does not invalidate existing sessions on other devices when a user changes their password, allowing old sessions to persist. This can lead to unauthorized ac…
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High 8.8
Session fixation vulnerability in Jenkins OpenId Connect Authentication Plugin
Jenkins OpenId Connect Authentication Plugin 4.418.vccc7061f5b_6d and earlier does not invalidate the previous session on login.
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Medium 4.0
A session fixation vulnerability in Fortinet FortiOS 7.4.0 through 7.4.3, FortiOS 7.2.0 through 7.2.7, FortiOS 7.0.0 th…
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Critical 9.1CVE-2023-52268 Public exploit
The End-User Portal module before 1.0.65 for FreeScout sometimes allows an attacker to authenticate as an arbitrary use…
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Medium 5.4
NGINX OpenID Connect Vulnerability
A session fixation issue was discovered in the NGINX OpenID Connect reference implementation, where a nonce was not checked at login time. This flaw allows an attacker to fix a victim's session to an attacker-controlled account. As a result, although the atta…
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Critical 9.1
Apache Kylin: Session fixation in web interface
Session Fixation vulnerability in Apache Kylin. This issue affects Apache Kylin: from 2.0.0 through 4.x. Users are recommended to upgrade to version 5.0.0 or above, which fixes the issue.
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Medium 4.2
Umbraco CMS Has Incomplete Server Termination During Explicit Sign-Out
Umbraco is a free and open source .NET content management system. In versions on the 13.x branch prior to 13.5.2 and versions on the 10.x branch prior to 10.8.7, during an explicit sign-out, the server session is not fully terminated. Versions 13.5.2 and 10.8…
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Medium 4.3
PHPGurukul Boat Booking System session_start session fixiation
A vulnerability classified as problematic has been found in PHPGurukul Boat Booking System 1.0. Affected is the function session_start. The manipulation leads to session fixiation. It is possible to launch the attack remotely. The exploit has been disclosed t…