How severe is CVE-2024-23821?

CVE-2024-23821 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-23821 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-23821?

CVE-2024-23821 primarily affects Geoserver. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-23821?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-23821 have an EU (EUVD) identifier?

Yes. CVE-2024-23821 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0872.

When was CVE-2024-23821 published?

CVE-2024-23821 was published on 2024-03-20 and last updated on 2026-06-17.

CVE-2024-23821

CVE-2024-23821 is a medium-severity vulnerability in Geoserver with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0872
Weakness: CWE-79
Affected product: Geoserver
Published: 2024-03-20
Last modified: 2026-06-17

Description

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 GWC Demos Page. Access to the GWC Demos 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.

Frequently asked questions

What is CVE-2024-23821?: 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 GWC Demos Page. Access to the GWC Demos 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.
How severe is CVE-2024-23821?: CVE-2024-23821 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-23821 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-23821?: CVE-2024-23821 primarily affects Geoserver. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-23821?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-23821 have an EU (EUVD) identifier?: Yes. CVE-2024-23821 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0872.
When was CVE-2024-23821 published?: CVE-2024-23821 was published on 2024-03-20 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:geoserver:geoserver:*:*:*:*:*:*:*:*
cpe:2.3:a:geoserver:geoserver:2.24.0:-:*:*:*:*:*:*

More vulnerabilities in Geoserver

CVE-2024-36401 — Critical (CVSS 9.8): GeoServer is an open source server that allows users to share and edit geospatial data. Prior to versions 2.22.6,…
CVE-2023-35042 — Critical (CVSS 9.8): GeoServer 2, in some configurations, allows remote attackers to execute arbitrary code via…
CVE-2025-58360 — High (CVSS 8.2): GeoServer is an open source server that allows users to share and edit geospatial data. From version 2.26.0 to before…
CVE-2024-24749 — High (CVSS 7.5): GeoServer is an open source server that allows users to share and edit geospatial data. Prior to versions 2.23.5 and…
CVE-2023-51444 — High (CVSS 7.2): GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. An…
CVE-2023-41877 — High (CVSS 7.2): GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. A path…

All CVEs affecting Geoserver →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →