GHSA-fg9v-56hw-g525 · Severity: medium · Ecosystem: maven — GeoServer's Simple SVG Renderer vulnerable to Stored Cross-Site Scripting (XSS)
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 WMS GetMap SVG Output Format when the Simple SVG renderer is enabled. Access to the WMS SVG Format is available to all users by default although data and service security may limit users' ability to trigger the XSS. Versions 2.23.4 and 2.24.1 contain a fix for this issue.
Conclusion & alert: CVE-2024-23642 is rated Moderate Risk (40/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.40%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-11-21 | 0.66% | 0.40% | -0.26% |
| 2 | 2025-11-18 | 0.40% | 0.66% | +0.26% |
| 3 | 2025-08-09 | — | 0.40% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.8 | 3.1 | MEDIUM |
|
1.7 | 2.7 | [email protected] |
| 4.8 | 3.1 | MEDIUM |
|
1.7 | 2.7 | [email protected] |
GHSA-fg9v-56hw-g525 · Severity: medium · Ecosystem: maven — GeoServer's Simple SVG Renderer vulnerable to Stored Cross-Site Scripting (XSS)