V
Scaner-VS
HomeCatalogSourcesCWECAPECATT&CKMitigationsProductsVendorsDocs
CVE-2026-42030
CVE
Medium

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…

CVSS
6.1
Medium
EPSS
0.00
p15
Published
2026-01-01
Updated
2026-01-01
Description

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.

Tags · CWE
Pre-auth
CWE-80
CAPEC-18
CAPEC-32
CAPEC-86
CAPEC-193
Affected products
Mapserver 6.0.0–8.6.2
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Timeline
2026-01-01
Published
2026-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: N
Network (N)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: R
Required (R)
Scope
S: C
Changed (C)
Confidentiality Impact
C: L
Low (L)
Integrity Impact
I: L
Low (L)
Availability Impact
A: N
None (N)
Exploit indicators
EPSS
0.002 · p15
Known exploited (KEV)
No
Known exploits — Сканер-ВС
No Сканер-ВС checks registered for this vulnerability yet.
Affected products
ProductVendorStatus
Tracked
mapserverTracked
mapserverTracked
mapserverTracked
mapserver*Tracked
libmapserver2Tracked
libmapserver2-develTracked
mapserverTracked
mapserver-perlTracked
python3-module-mapserverTracked