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.
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Mon, 14 Sep 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | CVE-2026-91021 | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: certcc
Published:
Updated: 2026-09-14T19:41:39.660Z
Reserved: 2026-09-14T17:02:03.736Z
Link: CVE-2026-91021
Updated: 2026-09-14T19:41:27.789Z
Status : Received
Published: 2026-09-14T18:20:29.467
Modified: 2026-09-14T20:17:03.440
Link: CVE-2026-91021
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