CVE-2026-66824 Detail
Received
This CVE record has recently been published to the CVE List and has been included within the NVD dataset. DescriptionA stored cross-site scripting vulnerability existed in the capture tree visualization page. The application embedded the serialized capture tree directly into an inline JavaScript block using the Jinja safe filter. Because the tree data can contain values derived from captured and potentially attacker-controlled web content, a specially crafted value could prematurely terminate the surrounding <script> element and inject arbitrary HTML or JavaScript. The malicious code would execute in the browser of a user viewing the affected capture tree. Successful exploitation could allow an attacker to perform actions using the victim’s authenticated session, access information available to the victim, or modify application data within the permissions of the affected user. The patch removes the JSON data from the HTML document and retrieves it through a dedicated API endpoint. The client then processes the response using response.json(), preventing capture data from being interpreted as executable content within the original page’s HTML or JavaScript context. Metrics
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CVSS 4.0 Severity and Vector Strings:
CNA: CIRCL
CVSS-B 9.2 CRITICAL
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:N/SA:N
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Weakness Enumeration
Quick InfoCVE Dictionary Entry:CVE-2026-66824 NVD Published Date: 07/27/2026 NVD Last Modified: 07/27/2026 Source: CIRCL |
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