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CVE-2024-23819· NVD / CVE Program· CNA GitHub_M

GeoServer Stored Cross-Site Scripting (XSS) vulnerability in MapML HTML Page

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.

MediumCVSS 4.8 · v3.1—No exploit Fix available
Published
Mar 20, 2024
Updated
Jun 17, 2026
EPSS
0.4% · 34th percentile
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Report tools

JSON

Action score

19

Monitor

Low priority for now.

CVSS
19 / 40 · 4.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
4.8
CNA · GitHub_M
4.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
geoservergeoserver

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • geoserver geoserverbefore 2.23.4
  • geoserver geoserver2.24.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • geoserver geoserver

    • < 2.23.4, = 2.24.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Mavenorg.geoserver.extension:gs-mapmlfrom 2.24.0 · before 2.24.12.24.1
Mavenorg.geoserver.extension:gs-mapmlbefore 2.23.42.23.4

Same product

geoserver: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-36401Remote Code Execution (RCE) vulnerability in evaluating property name expressions in GeoserverKEV
    99Now
  • CVE-2025-58360GeoServer is vulnerable to an Unauthenticated XML External Entities (XXE) attack via WMS GetMap featureKEV
    87Now
  • CVE-2023-35042GeoServer 2, in some configurations, allows remote attackers to execute arbitrary code via java.lang.Runtime.getRuntime().exec in wps:Litera
    52Plan
  • CVE-2024-24749Classpath resource disclosure in GWC Web Resource API on Windows / Tomcat
    30Monitor
  • CVE-2023-51444GeoServer arbitrary file upload vulnerability in REST Coverage Store API
    29Monitor
  • CVE-2023-41877GeoServer log file path traversal vulnerability
    28Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Maven:org.geoserver.extension:gs-mapml2.23.4Package registry (OSV)
Maven:org.geoserver.extension:gs-mapml2.24.1Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2023-514450 days apartGeoServer Stored Cross-Site Scripting (XSS) vulnerability in REST Resources API
    19Monitor
  • CVE-2024-236400 days apartGeoServer Stored Cross-Site Scripting (XSS) vulnerability in Style Publisher
    19Monitor
  • CVE-2024-236420 days apartGeoServer Stored Cross-Site Scripting (XSS) vulnerability in Simple SVG Renderer
    19Monitor
  • CVE-2024-236430 days apartGeoServer Stored Cross-Site Scripting (XSS) vulnerability in GWC Seed Form
    19Monitor
  • CVE-2024-238180 days apartGeoServer Stored Cross-Site Scripting (XSS) vulnerability in WMS OpenLayers Format
    19Monitor
  • CVE-2024-238210 days apartGeoServer's GWC Demos Page vulnerable to Stored Cross-Site Scripting (XSS)
    19Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

nvd-primary

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

The bug in code

The whole CWE-79 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.textContent = comment.body;

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records