CVE-2026-91021
CVE-2026-91021
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | trilium |
| Product | trillium notes |
| Published | Sep 14, 2026 |
| Last Updated | Sep 14, 2026 |
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Affected Versions
Trilium / Trillium Notes
0 ≤ v0.103.0