CVSS 4.0
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и след действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
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 into the HTML response body without proper output encoding or sanitization. An unauthenticated, remote attacker can craft a URL containing an HTML/JavaScript payload in the path (e.g. https:////welcome.htm) and, once a victim with an active PRTG session opens the crafted link, execute arbitrary JavaScript in the security context of the PRTG web interface. Because the PRTG session cookie is not protected with the HttpOnly attribute, successful exploitation allows the attacker to read and exfiltrate the victim's session cookie, potentially leading to session hijacking.
Засегнати продукти
- Paessler GmbH PRTG Network Monitor: преди 26.2.120.1449
Вид слабост
История
- 24 септември 2026 Публикувано
Други уязвимости в Paessler GmbH PRTG Network Monitor
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-4637
- https://nvd.nist.gov/vuln/detail/CVE-2026-4637
- https://paessler.freshdesk.com/en/support/solutions/articles/76000088640
- https://www.paessler.com/de/download/
- https://www.paessler.com/prtg/prtg-network-monitor
- https://r.sec-consult.com/paessler
- https://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-paessler-prtg-network-monitor/