CWE-384
AllowedSession 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.
547 vulnerabilities reference this CWE, most recent first.
GHSA-F976-24HC-MJVR
Vulnerability from github – Published: 2023-01-26 21:30 – Updated: 2023-01-27 01:02Jenkins OpenID Plugin 2.4 and earlier does not invalidate the previous session on login.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.jenkins-ci.plugins:openid"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-24444"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": true,
"github_reviewed_at": "2023-01-27T01:02:10Z",
"nvd_published_at": "2023-01-26T21:18:00Z",
"severity": "HIGH"
},
"details": "Jenkins OpenID Plugin 2.4 and earlier does not invalidate the previous session on login.",
"id": "GHSA-f976-24hc-mjvr",
"modified": "2023-01-27T01:02:10Z",
"published": "2023-01-26T21:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-24444"
},
{
"type": "WEB",
"url": "https://www.jenkins.io/security/advisory/2023-01-24/#SECURITY-2996"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "Session fixation vulnerability in Jenkins OpenID Plugin "
}
GHSA-FCVM-3CPJ-F9QX
Vulnerability from github – Published: 2026-05-26 13:30 – Updated: 2026-06-30 17:26Default configurations of Apache Shiro have a session fixation vulnerability.
This issue affects Apache Shiro from 1.0 to 2.1.0, and 3.0.0-alpha-1.
Users are recommended to upgrade to version 2.1.1, or 3.0.0-alpha-2 or later, which fixes the issue.
In the affected versions, when a session already exists, it is not invalidated upon successful login, nor is a new session being generated with a new ID.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.shiro:shiro-core"
},
"ranges": [
{
"events": [
{
"introduced": "1.0.0-incubating"
},
{
"fixed": "2.2.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.shiro:shiro-core"
},
"ranges": [
{
"events": [
{
"introduced": "3.0.0-alpha-1"
},
{
"fixed": "3.0.0-alpha-2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.0.0-alpha-1"
]
}
],
"aliases": [
"CVE-2026-43827"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-30T17:26:23Z",
"nvd_published_at": "2026-05-25T21:16:34Z",
"severity": "MODERATE"
},
"details": "Default configurations of Apache Shiro have a session fixation vulnerability.\n\nThis issue affects Apache Shiro from 1.0 to 2.1.0, and 3.0.0-alpha-1.\n\nUsers are recommended to upgrade to version 2.1.1, or 3.0.0-alpha-2 or later, which fixes the issue.\n\nIn the affected versions, when a session already exists, it is not invalidated upon successful login, nor is a new session being generated with a new ID.",
"id": "GHSA-fcvm-3cpj-f9qx",
"modified": "2026-06-30T17:26:23Z",
"published": "2026-05-26T13:30:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43827"
},
{
"type": "PACKAGE",
"url": "https://github.com/apache/shiro"
},
{
"type": "WEB",
"url": "https://shiro.apache.org/security-reports.html#cve_2026_43827"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/05/25/6"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/RE:L/U:Amber",
"type": "CVSS_V4"
}
],
"summary": "Apache Shiro has a session fixation vulnerability"
}
GHSA-FFMR-X97F-2X5X
Vulnerability from github – Published: 2022-05-14 03:15 – Updated: 2022-05-14 03:15Monstra CMS 3.0.4 has a Session Management Issue in the Administrations Tab. A password change at admin/index.php?id=users&action=edit&user_id=1 does not invalidate a session that is open in a different browser.
{
"affected": [],
"aliases": [
"CVE-2018-11474"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-05-25T19:29:00Z",
"severity": "HIGH"
},
"details": "Monstra CMS 3.0.4 has a Session Management Issue in the Administrations Tab. A password change at admin/index.php?id=users\u0026action=edit\u0026user_id=1 does not invalidate a session that is open in a different browser.",
"id": "GHSA-ffmr-x97f-2x5x",
"modified": "2022-05-14T03:15:54Z",
"published": "2022-05-14T03:15:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-11474"
},
{
"type": "WEB",
"url": "https://github.com/monstra-cms/monstra/issues/444"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FG2G-P9QQ-JW38
Vulnerability from github – Published: 2022-05-24 17:42 – Updated: 2022-05-24 17:42Pi-hole 5.0, 5.1, and 5.1.1 allows Session Fixation. The application does not generate a new session cookie after the user is logged in. A malicious user is able to create a new session cookie value and inject it to a victim. After the victim logs in, the injected cookie becomes valid, giving the attacker access to the user's account through the active session.
{
"affected": [],
"aliases": [
"CVE-2020-35591"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-02-18T20:15:00Z",
"severity": "MODERATE"
},
"details": "Pi-hole 5.0, 5.1, and 5.1.1 allows Session Fixation. The application does not generate a new session cookie after the user is logged in. A malicious user is able to create a new session cookie value and inject it to a victim. After the victim logs in, the injected cookie becomes valid, giving the attacker access to the user\u0027s account through the active session.",
"id": "GHSA-fg2g-p9qq-jw38",
"modified": "2022-05-24T17:42:36Z",
"published": "2022-05-24T17:42:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35591"
},
{
"type": "WEB",
"url": "https://discourse.pi-hole.net/c/announcements/5"
},
{
"type": "WEB",
"url": "https://n4nj0.github.io/advisories/pi-hole-multiple-vulnerabilities-i"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-FJJ5-FJ78-H28J
Vulnerability from github – Published: 2026-03-27 12:31 – Updated: 2026-04-02 21:32Bludit allows user's session identifier to be set before authentication. The value of this session ID stays the same after authentication. This behavior enables an attacker to fix a session ID for a victim and later hijack the authenticated session.
This issue was fixed in version 3.17.2.
{
"affected": [],
"aliases": [
"CVE-2026-25101"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-27T12:16:20Z",
"severity": "MODERATE"
},
"details": "Bludit allows user\u0027s session identifier to be set before authentication. The value of this session ID stays the same after authentication. This behavior enables an attacker to fix a session ID\nfor a victim and later hijack the authenticated session.\n\nThis issue was fixed in version 3.17.2.",
"id": "GHSA-fjj5-fj78-h28j",
"modified": "2026-04-02T21:32:49Z",
"published": "2026-03-27T12:31:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25101"
},
{
"type": "WEB",
"url": "https://cert.pl/posts/2026/03/CVE-2026-25099"
},
{
"type": "WEB",
"url": "https://github.com/bludit/bludit/releases/tag/3.17.2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-FM32-WGPG-7RC9
Vulnerability from github – Published: 2022-05-24 19:20 – Updated: 2023-11-14 00:30An issue was discovered in Barrier before 2.4.0. An attacker can enter an active session state with the barriers component (aka the server-side implementation of Barrier) simply by supplying a client label that identifies a valid client configuration. This label is "Unnamed" by default but could instead be guessed from hostnames or other publicly available information. In the active session state, an attacker can capture input device events from the server, and also modify the clipboard content on the server.
{
"affected": [],
"aliases": [
"CVE-2021-42073"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-11-08T04:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in Barrier before 2.4.0. An attacker can enter an active session state with the barriers component (aka the server-side implementation of Barrier) simply by supplying a client label that identifies a valid client configuration. This label is \"Unnamed\" by default but could instead be guessed from hostnames or other publicly available information. In the active session state, an attacker can capture input device events from the server, and also modify the clipboard content on the server.",
"id": "GHSA-fm32-wgpg-7rc9",
"modified": "2023-11-14T00:30:17Z",
"published": "2022-05-24T19:20:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-42073"
},
{
"type": "WEB",
"url": "https://github.com/debauchee/barrier/commit/229abab99f39f11624e5651f819e7f1f8eddedcc"
},
{
"type": "WEB",
"url": "https://github.com/debauchee/barrier/commit/b5adc93e2bd74cb094f91ff595c07f321a489f3e"
},
{
"type": "WEB",
"url": "https://github.com/debauchee/barrier/releases/tag/v2.4.0"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2021/11/02/4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-FM4W-5HQF-CH9W
Vulnerability from github – Published: 2023-05-10 00:30 – Updated: 2024-04-04 03:58A security vulnerability has been discovered in the implementation of 2FA on the rocket.chat platform, where other active sessions are not invalidated upon activating 2FA. This could potentially allow an attacker to maintain access to a compromised account even after 2FA is enabled.
{
"affected": [],
"aliases": [
"CVE-2023-28316"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-05-09T22:15:09Z",
"severity": "CRITICAL"
},
"details": "A security vulnerability has been discovered in the implementation of 2FA on the rocket.chat platform, where other active sessions are not invalidated upon activating 2FA. This could potentially allow an attacker to maintain access to a compromised account even after 2FA is enabled.",
"id": "GHSA-fm4w-5hqf-ch9w",
"modified": "2024-04-04T03:58:12Z",
"published": "2023-05-10T00:30:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28316"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/992280"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPH2-95MP-M2FQ
Vulnerability from github – Published: 2022-11-08 12:00 – Updated: 2022-11-09 19:02A vulnerability has been identified in POWER METER SICAM Q100 (All versions < V2.50), POWER METER SICAM Q100 (All versions < V2.50). Affected devices do not renew the session cookie after login/logout and also accept user defined session cookies. An attacker could overwrite the stored session cookie of a user. After the victim logged in, the attacker is given access to the user's account through the activated session.
{
"affected": [],
"aliases": [
"CVE-2022-43398"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-11-08T11:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in POWER METER SICAM Q100 (All versions \u003c V2.50), POWER METER SICAM Q100 (All versions \u003c V2.50). Affected devices do not renew the session cookie after login/logout and also accept user defined session cookies. An attacker could overwrite the stored session cookie of a user. After the victim logged in, the attacker is given access to the user\u0027s account through the activated session.",
"id": "GHSA-fph2-95mp-m2fq",
"modified": "2022-11-09T19:02:23Z",
"published": "2022-11-08T12:00:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-43398"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-570294.pdf"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-887249.pdf"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPQQ-44HC-VVX2
Vulnerability from github – Published: 2025-04-18 18:31 – Updated: 2025-04-22 15:30Improper session management in Elber REBLE310 Firmware v5.5.1.R , Equipment Model: REBLE310/RX10/4ASI allows attackers to execute a session hijacking attack.
{
"affected": [],
"aliases": [
"CVE-2025-28238"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-18T18:15:46Z",
"severity": "CRITICAL"
},
"details": "Improper session management in Elber REBLE310 Firmware v5.5.1.R , Equipment Model: REBLE310/RX10/4ASI allows attackers to execute a session hijacking attack.",
"id": "GHSA-fpqq-44hc-vvx2",
"modified": "2025-04-22T15:30:52Z",
"published": "2025-04-18T18:31:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-28238"
},
{
"type": "WEB",
"url": "https://github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-28238"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPWP-69XV-C67F
Vulnerability from github – Published: 2018-09-13 15:46 – Updated: 2025-07-11 23:17The pypi package aiohttp-session before 2.4.0 contained a Session Fixation vulnerability in load_session function for RedisStorage that can result in Session Hijacking. This attack appear to be exploitable via Any method that allows setting session cookies (?session=<>, or meta tags or script tags with Set-Cookie).
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "aiohttp-session"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2018-1000519"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T21:35:06Z",
"nvd_published_at": "2018-06-26T16:29:01Z",
"severity": "HIGH"
},
"details": "The pypi package aiohttp-session before 2.4.0 contained a Session Fixation vulnerability in `load_session` function for RedisStorage that can result in Session Hijacking. This attack appear to be exploitable via Any method that allows setting session cookies (`?session=\u003c\u003e`, or meta tags or script tags with Set-Cookie).",
"id": "GHSA-fpwp-69xv-c67f",
"modified": "2025-07-11T23:17:38Z",
"published": "2018-09-13T15:46:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1000519"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp-session/issues/272"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp-session/commit/6b7864004d3442dbcfaf8687f63262c1c629f569"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-fpwp-69xv-c67f"
},
{
"type": "PACKAGE",
"url": "https://github.com/aio-libs/aiohttp-session"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp-session/blob/master/aiohttp_session/redis_storage.py#L60"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp-session/PYSEC-2018-80.yaml"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "aiohttp-session Session Fixation vulnerability"
}
Mitigation
Invalidate any existing session identifiers prior to authorizing a new user session.
Mitigation
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
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.