SB20260827149 - Multiple vulnerabilities in MapServer
Published: August 27, 2026
Security Bulletin ID
SB20260827149
CSH Severity
High
Patch available
YES
Number of vulnerabilities
7
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 vulnerabilities.
1) Cross-site scripting (CVE-ID: CVE-2026-77323)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
The vulnerability allows a remote attacker to execute arbitrary JavaScript in the victim\'s browser under the MapServer origin.
The vulnerability exists due to cross-site scripting in the OGC API Features collection-items HTML output when rendering unescaped offset or limit query parameters inside a