CVE-2026-4637

Paessler PRTG Network Monitor before version 26.2.120.1449 is affected by a reflected Cross-Site Scripting XSS vulnerability. When a request is made for a non-existent resource ending in ".htm", the web interface returns an HTTP 403 "Forbidden Path" error page that echoes the requested URL path...

CVE-2026-4637 Reflected Cross-Site Scripting via URL Path in Paessler PRTG Network Monitor

Paessler PRTG Network Monitor before version 26.2.120.1449 is affected by a reflected Cross-Site Scripting XSS vulnerability. When a request is made for a non-existent resource ending in ".htm", the web interface returns an HTTP 403 "Forbidden Path" error page that echoes the requested URL path...

EUVD-2026-85840

Paessler PRTG Network Monitor before version 26.2.120.1449 is affected by a reflected Cross-Site Scripting XSS vulnerability. When a request is made for a non-existent resource ending in ".htm", the web interface returns an HTTP 403 "Forbidden Path" error page that echoes the requested URL path...

CVE-2026-4637

Paessler PRTG Network Monitor (versions before 26.2.120.1449 ) is vulnerable to a reflected Cross-Site Scripting (XSS) flaw. The issue occurs because the web interface returns an HTTP 403 "Forbidden Path" error page for non-existent resources ending in ".htm" and echoes the requested URL path int...

PT-2026-97779

Name of the Vulnerable Software and Affected Versions Paessler PRTG Network Monitor versions prior to 26.2.120.1449 Description A reflected Cross-Site Scripting XSS issue exists where the web interface returns an HTTP 403 Forbidden Path error page when a request is made for a non-existent resourc...

CVE-2026-4637: Improper Neutralization of Input During Web Page Generation

Paessler PRTG Network Monitor before version 26.2.120.1449 is affected by a reflected Cross-Site Scripting XSS vulnerability. When a request is made for a non-existent resource ending in ".htm", the web interface returns an HTTP 403 "Forbidden Path" error page that echoes the requested URL path...

Design/Logic Flaw

Episerver Ektron CMS before 9.0 SP3 Site CU 31, 9.1 before SP3 Site CU 45, or 9.2 before SP2 Site CU 22 allows remote attackers to call aspx pages via the "activateuser.aspx" page, even if a page is located under the /WorkArea/ path, which is forbidden normally available exclusively for local...

CVE-2018-12596

Episerver Ektron CMS before 9.0 SP3 Site CU 31, 9.1 before SP3 Site CU 45, or 9.2 before SP2 Site CU 22 allows remote attackers to call aspx pages via the "activateuser.aspx" page, even if a page is located under the /WorkArea/ path, which is forbidden normally available exclusively for local...

Ektron CMS 9.20 SP2 Improper Access Restrictions

Details ================ Software: Ektron Content Management System CMS Version: 9.20 SP2 Homepage: https://www.episerver.com Advisory report: https://github.com/alt3kx/CVE-2018-12596 CVE: CVE-2018-12596 CVSS: 7.5 HIGH: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CWE-284 Description ================ Ektr...