cvedb.io
CVE-2026-42030
MEDIUM · CVSS 6.1
EPSS exploitation probability: 0%
Published 2026-05-08T17:16:31.307 · Last modified 2026-06-17T10:47:20.117

Summary

MapServer is a system for developing web-based GIS applications. From version 6.0 to before version 8.6.2, a reflected XSS vulnerability in MapServer's WMS server allows an unauthenticated attacker to inject arbitrary HTML/JavaScript into the browser of any user who opens a crafted WMS URL. The vulnerability is triggered via FORMAT=application/openlayers combined with an unsanitized SRS parameter in WMS 1.3.0 requests. This issue has been patched in version 8.6.2.

Affected products

osgeo — mapserver

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.