PT-2026-44211 · Misp · Cti-Transmute

Ecrou-Exact 🔩 · Published 2026-05-28 · Updated 2026-05-28 · CVE-2026-9806

Mitre

CVSS v4.0

6.3

Medium

Base vector

AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/S:N/RE:L/U:Clear

A stored cross-site scripting (XSS) vulnerability exists in the notification panel of CTI Transmute in versions prior to the patched release. Notification messages containing user-controlled convert names were rendered in the notification bell dropdown using innerHTML without adequate sanitization. An attacker able to create or influence a convert name that is included in a notification could inject arbitrary JavaScript, which would execute in the browser of an authenticated user when they opened the notification panel. Successful exploitation could allow the attacker to perform actions in the victim's session or access information available to the application in the browser context. The issue was remediated by constructing notification elements through DOM methods and assigning notification message content via textContent instead of innerHTML. This vulnerability was only present on a development branch.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-9806

Affected Products

Cti-Transmute

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-9806 · Security Note
• https://github.com/MISP/cti-transmute/commit/cf42409badc27b13d9bb644b9175aa7f27e11259 · Patch