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CVE mentions, exploit signals, and PoC evidence in one fast public view.

CVE detail

CVE-2025-21621

GeoServer is an open source server that allows users to share and edit geospatial data. Prior to version 2.25.0, a reflected cross-site scripting (XSS) vulnerability exists in the WMS GetFeatureInfo HTML output format that enables a remote attacker to execute arbitrary JavaScript code in a victim's browser through specially crafted SLD_BODY parameters. This issue has been patched in version 2.25.0.

CVSS 6.1 · MediumBuzz score 11.9

Buzz score

Why this CVE is surfacing

Buzz score total 11.9

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 6.9 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
6.9
1 evidence mentions in the snapshot
Diversity score
5.0
1 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
1 source links · newest first
  • Recent GeoServer Vulnerability Exploited in AttacksSecurityWeek

    Because user input is not sufficiently sanitized, attackers could exploit the flaw to define external entities within an XML request.

    newswww.securityweek.comDec 12, 2025, 12:13 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence
  • 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 versio…

    CVSS 4.8 · Medium
  • CVE-2024-23819

    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 versio…

    CVSS 4.8 · Medium
  • CVE-2024-23818

    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 versio…

    CVSS 4.8 · Medium
  • CVE-2024-23643

    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 versio…

    CVSS 4.8 · Medium
  • CVE-2024-23642

    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 versio…

    CVSS 4.8 · Medium
  • CVE-2024-23640

    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 versio…

    CVSS 4.8 · Medium