MEDIUM

CVE-2026-91021

2026-09-14 CVSS v3.1

CVSS

5.4

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.

Weakness (CWE)

CWE-79 Cross-site Scripting (XSS)

EPSS Score

0.14%

Probability of exploitation in next 30 days

3.8th percentile

References

https://vokecyber.com/research/trilium-share-renderer-stored-xss

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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