This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
No data.
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No data available yet.
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-6956 | A vulnerability in open-webui/open-webui version 0.3.8 allows an attacker with a user-level account to perform a session fixation attack. The session cookie for all users is set with the default `SameSite=Lax` and does not have the `Secure` flag enabled, allowing the session cookie to be sent over HTTP to a cross-origin domain. An attacker can exploit this by embedding a malicious markdown image in a chat, which, when viewed by an administrator, sends the admin's session cookie to the attacker's server. This can lead to a stealthy administrator account takeover, potentially resulting in remote code execution (RCE) due to the elevated privileges of administrator accounts. |
Github GHSA |
GHSA-43g4-487m-5q6m | Open WebUI Vulnerable to a Session Fixation Attack |
No CVSS v4.0
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
No EPSS score available.
Key SSVC decision points have not yet been added.
No reference.
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Session Fixation in open-webui/open-webui | |
| References |
|
|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-79 | |
| CPEs | ||
| Vendors & Products |
Openwebui
Openwebui open Webui |
|
| Metrics |
cvssV3_0
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A vulnerability in open-webui/open-webui version 0.3.8 allows an attacker with a user-level account to perform a session fixation attack. The session cookie for all users is set with the default `SameSite=Lax` and does not have the `Secure` flag enabled, allowing the session cookie to be sent over HTTP to a cross-origin domain. An attacker can exploit this by embedding a malicious markdown image in a chat, which, when viewed by an administrator, sends the admin's session cookie to the attacker's server. This can lead to a stealthy administrator account takeover, potentially resulting in remote code execution (RCE) due to the elevated privileges of administrator accounts. | This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. |
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Openwebui
Openwebui open Webui |
|
| CPEs | cpe:2.3:a:openwebui:open_webui:0.3.8:*:*:*:*:*:*:* | |
| Vendors & Products |
Openwebui
Openwebui open Webui |
|
| Metrics |
cvssV3_1
|
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A vulnerability in open-webui/open-webui version 0.3.8 allows an attacker with a user-level account to perform a session fixation attack. The session cookie for all users is set with the default `SameSite=Lax` and does not have the `Secure` flag enabled, allowing the session cookie to be sent over HTTP to a cross-origin domain. An attacker can exploit this by embedding a malicious markdown image in a chat, which, when viewed by an administrator, sends the admin's session cookie to the attacker's server. This can lead to a stealthy administrator account takeover, potentially resulting in remote code execution (RCE) due to the elevated privileges of administrator accounts. | |
| Title | Session Fixation in open-webui/open-webui | |
| Weaknesses | CWE-79 | |
| References |
| |
| Metrics |
cvssV3_0
|
No data.
No weakness.