Bug 2468309 (CVE-2026-42030) - CVE-2026-42030 MapServer: OpenLayers: MapServer: Reflected Cross-Site Scripting (XSS) via unsanitized WMS parameter
Summary: CVE-2026-42030 MapServer: OpenLayers: MapServer: Reflected Cross-Site Scripti...
Keywords:
Status: NEW
Alias: CVE-2026-42030
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2477882
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-08 17:01 UTC by OSIDB Bzimport
Modified: 2026-05-15 13:33 UTC (History)
0 users

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Description OSIDB Bzimport 2026-05-08 17:01:38 UTC 
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.
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