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CVE-2026-91021

MEDIUM CVSS: 5.4 Published: 2026-09-14 Modified: 2026-09-16

Description

Trilium Notes, version v0.103.0 and earlier, contains a stored cross-site scripting (XSS) vulnerability in the share renderer for webView notes due to improper HTML escaping of user-controlled #webViewSrc values. This vulnerability allows attackers with note-authoring privileges to inject arbitrary JavaScript that executes for any user who opens the shared note, including administrators.

Affected Platforms

Unknown

Weakness Type

CWE-79

References