Cross-site Scripting (XSS)

Overview org.graylog2:graylog2-server is a log management platform. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the Event Definition Remediation Step field. An attacker can obtain user session cookies by submitting an HTML form. Note: This is only exploitable ...

CVE-2025-46827

Graylog is a free and open log management platform. Prior to versions 6.0.14, 6.1.10, and 6.2.0, it is possible to obtain user session cookies by submitting an HTML form as part of an Event Definition Remediation Step field. For this attack to succeed, the attacker needs a user account with...

CVE-2025-46827

Graylog has a vulnerability (CVE-2025-46827) where an HTML form in an Event Definition Remediation Step can leak user session cookies if an attacker has create-event-definition rights and the victim can view alerts, with an active input to receive form data. Affected versions are before 6.0.14, 6...

CVE-2025-46827 Graylog Allows Session Takeover via Insufficient HTML Sanitization

Graylog is a free and open log management platform. Prior to versions 6.0.14, 6.1.10, and 6.2.0, it is possible to obtain user session cookies by submitting an HTML form as part of an Event Definition Remediation Step field. For this attack to succeed, the attacker needs a user account with...

CVE-2025-46827 Graylog Allows Session Takeover via Insufficient HTML Sanitization

Graylog is a free and open log management platform. Prior to versions 6.0.14, 6.1.10, and 6.2.0, it is possible to obtain user session cookies by submitting an HTML form as part of an Event Definition Remediation Step field. For this attack to succeed, the attacker needs a user account with...

CVE-2025-46827 Graylog Allows Session Takeover via Insufficient HTML Sanitization

Graylog is a free and open log management platform. Prior to versions 6.0.14, 6.1.10, and 6.2.0, it is possible to obtain user session cookies by submitting an HTML form as part of an Event Definition Remediation Step field. For this attack to succeed, the attacker needs a user account with...

GHSA-76VF-MPMX-777J Graylog Allows Session Takeover via Insufficient HTML Sanitization

Impact It is possible to obtain user session cookies by submitting an HTML form as part of an Event Definition Remediation Step field. For this attack to succeed, the attacker needs a user account with permissions to create event definitions, while the user must have permissions to view alerts...

Graylog Allows Session Takeover via Insufficient HTML Sanitization

Impact It is possible to obtain user session cookies by submitting an HTML form as part of an Event Definition Remediation Step field. For this attack to succeed, the attacker needs a user account with permissions to create event definitions, while the user must have permissions to view alerts...

Cross-site Scripting (XSS)

Overview org.graylog2:graylog2-server is a log management platform. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the plugins and API Browser. An attacker with the FILESCREATE permission can upload and execute arbitrary Javascript, leading to unauthorized action...

GHSA-Q9Q2-3PPX-MWQF Graylog Allows Stored Cross-Site Scripting via Files Plugin and API Browser

Impact Two minor vulnerabilities were identified in the Graylog2 enterprise server, which can be combined to carry out a stored cross-site scripting attack. An attacker with the permission FILESCREATE can exploit these vulnerabilities to upload arbitrary Javascript code to the Graylog2 server,...

Graylog Allows Stored Cross-Site Scripting via Files Plugin and API Browser

Impact Two minor vulnerabilities were identified in the Graylog2 enterprise server, which can be combined to carry out a stored cross-site scripting attack. An attacker with the permission FILESCREATE can exploit these vulnerabilities to upload arbitrary Javascript code to the Graylog2 server,...

CVE-2025-46827: Improper Neutralization of Input During Web Page Generation

Graylog is a free and open log management platform. Prior to versions 6.0.14, 6.1.10, and 6.2.0, it is possible to obtain user session cookies by submitting an HTML form as part of an Event Definition Remediation Step field. For this attack to succeed, the attacker needs a user account with...

PT-2025-20234

Name of the Vulnerable Software and Affected Versions Graylog versions prior to 6.0.14 Graylog versions prior to 6.1.10 Graylog versions prior to 6.2.0 Description Graylog is a log management platform. An issue exists where user session cookies can be obtained by submitting an HTML form within an...

Graylog 跨站脚本漏洞

Graylog is a centralized log management solution from the US company Graylog. The product supports capturing, storing, and analyzing logs in real-time, among other things. A cross-site scripting vulnerability exists in Graylog versions prior to 6.2.0, which stems from an HTML form that can be...

CVE-2025-30373

Graylog is a free and open log management platform. Starting with 6.1, HTTP Inputs can be configured to check if a specified header is present and has a specified value to authenticate HTTP-based ingestion. Unfortunately, even though in cases of a missing header or a wrong value the correct HTTP...

Graylog's Authenticated HTTP inputs ingest message even if Authorization header is missing or has wrong value

Impact Starting with 6.1, HTTP Inputs can be configured to check if a specified header is present and has a specified value to authenticate HTTP-based ingestion. Unfortunately, even though in cases of a missing header or a wrong value the correct HTTP response 401 is returned, the message will be...

GHSA-Q7G5-JQ6P-6WVX Graylog's Authenticated HTTP inputs ingest message even if Authorization header is missing or has wrong value

Impact Starting with 6.1, HTTP Inputs can be configured to check if a specified header is present and has a specified value to authenticate HTTP-based ingestion. Unfortunately, even though in cases of a missing header or a wrong value the correct HTTP response 401 is returned, the message will be...

Authentication Bypass Using an Alternate Path or Channel

Overview org.graylog2:graylog2-server is a log management platform. Affected versions of this package are vulnerable to Authentication Bypass Using an Alternate Path or Channel in the channelRead0 function. An attacker can bypass authentication by sending HTTP requests without required...

CVE-2025-30373

Graylog is a free and open log management platform. Starting with 6.1, HTTP Inputs can be configured to check if a specified header is present and has a specified value to authenticate HTTP-based ingestion. Unfortunately, even though in cases of a missing header or a wrong value the correct HTTP...

CVE-2025-30373

CVE-2025-30373 affects Graylog (Graylog2-server) starting with version 6.1, where HTTP Inputs can be configured to require a header/value for authentication. The flaw: when the required header is missing or has an incorrect value, the system returns HTTP 401 but ingests the message anyway, effect...