CVE-2024-23819: GeoServer Stored Cross-Site Scripting (XSS) vulnerability in MapML HTML Page
Summary A stored cross-site scripting (XSS) vulnerability exists that enables an authenticated administrator with workspace-level privileges to store a JavaScript payload in the GeoServer catalog that will execute in the context of another user's browser when viewed in the MapML HTML Page. The MapML extension must be installed and access to the MapML HTML Page is available to all users although data security may limit users' ability to trigger the XSS.
Impact If an attacker can control a script that is executed in the victim's browser, then they can typically fully compromise that user. Amongst other things, the attacker can:
1 .Perform any action within the application that the user can perform. 2. View any information that the user is able to view. 3. Modify any information that the user is able to modify. 4. Initiate interactions with other application users, including malicious attacks, that will appear to originate from the initial victim user.
References https://osgeo-org.atlassian.net/browse/GEOS-11154 https://github.com/geoserver/geoserver/pull/7175
Other sources
GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. A stored cross-site scripting (XSS) vulnerability exists in versions prior to 2.23.4 and 2.24.1 that enables an authenticated administrator with workspace-level privileges to store a JavaScript payload in the GeoServer catalog that will execute in the context of another user's browser when viewed in the MapML HTML Page. The MapML extension must be installed and access to the MapML HTML Page is available to all users although data security may limit users' ability to trigger the XSS. Versions 2.23.4 and 2.24.1 contain a patch for this issue.
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Event History
Frequently Asked Questions
What is the severity of CVE-2024-23819?
CVE-2024-23819 is rated as a high severity vulnerability due to its potential for stored cross-site scripting attacks.
How do I fix CVE-2024-23819?
To remediate CVE-2024-23819, you should update GeoServer to version 2.24.1 or 2.23.4.
Who is affected by CVE-2024-23819?
Authenticated administrators with workspace-level privileges in GeoServer are primarily affected by CVE-2024-23819.
What kind of attack does CVE-2024-23819 enable?
CVE-2024-23819 enables an attacker to execute arbitrary JavaScript in the context of another user's browser.
What versions of GeoServer are vulnerable to CVE-2024-23819?
GeoServer versions prior to 2.24.1 and including 2.24.0 and 2.23.4 are vulnerable to CVE-2024-23819.