SB2026061941 - Fedora 43 update for mapserver

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Main Vulnerability Database SB2026061941

SB2026061941 - Fedora 43 update for mapserver

Published: June 19, 2026

Security Bulletin ID SB2026061941
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) (CVE-ID: CVE-2026-42030)

CWE-ID: CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to execute arbitrary JavaScript in the browser of a user who opens a crafted URL.

The vulnerability exists due to improper neutralization of script-related html tags in the OpenLayers viewer output of the WMS server when processing WMS 1.3.0 requests with FORMAT=application/openlayers and an unsanitized SRS parameter. A remote attacker can send a specially crafted WMS URL to execute arbitrary JavaScript in the browser of a user who opens a crafted URL.

User interaction is required to open the crafted URL.


Remediation

Install update from vendor's website.

References