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CVE-2026-53579— Trilium: Note Import to RCE via Book Note

Quick assessment

Affected
TriliumNext Trilium
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Trilium Next Trilium Notes是Trilium Next组织的一款支持文档管理与项目管理的工具。 Trilium Next Trilium Notes 0.104.0之前版本存在安全漏洞，该漏洞源于Safe import过滤器未对book note类型进行HTML清理，导致恶意导入档案中的脚本可执行，可能造成跨站脚本攻击，并在桌面客户端升级为远程代码执行。

CVSS 9.3 · Critical EPSS 0.25% · P16

Affected Version Matrix 1

VendorProduct Version RangeStatus
TriliumNext Trilium < 0.104.0 affected
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I. Basic Information for CVE-2026-53579

Vulnerability Information
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Vulnerability Title
Trilium: Note Import to RCE via Book Note
Source: CVE Program / CVE List V5
Vulnerability Description
Trilium is an open-source hierarchical note-taking application. In versions up to and including 0.103.0, the default-on "Safe import" filter sanitizes HTML only for text notes and excludes the book note type, whose content is stored without sanitization and later rendered as HTML, allowing an attacker-supplied import archive to embed a payload that executes as script. A book note's content is routed through the same rendering path as text notes and injected into the page with jQuery's html method when the note is shown as a grid-view preview card, so a malicious note survives Safe import and runs as soon as the victim opens the containing note. On the desktop client the Electron renderer runs with Node integration enabled, so the injected JavaScript escalates from cross-site scripting to full remote code execution on the victim's machine. This issue is fixed in version 0.104.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Trilium Next Trilium Notes 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Trilium Next Trilium Notes是Trilium Next组织的一款支持文档管理与项目管理的工具。 Trilium Next Trilium Notes 0.104.0之前版本存在安全漏洞，该漏洞源于Safe import过滤器未对book note类型进行HTML清理，导致恶意导入档案中的脚本可执行，可能造成跨站脚本攻击，并在桌面客户端升级为远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TriliumNext Trilium < 0.104.0 -

II. Public POCs for CVE-2026-53579

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III. Intelligence Information for CVE-2026-53579

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Patches & Fixes for CVE-2026-53579 (1)

Vendor Advisories for CVE-2026-53579 (1)

Same Patch Batch · TriliumNext · 2026-08-27 · 6 CVEs total

CVE-2026-53578 9.3 CRITICAL Trilium: Note Import to RCE via Mind Elixir dangerouslySetInnerHtml
CVE-2026-48996 9.3 CRITICAL Trilium: Malicious import with GeoMap marker title XSS leads to RCE on the desktop client
CVE-2026-47727 8.6 HIGH Trilium: RCE via `shareTemplate` relation missing `isDangerous` flag — Safe import bypass
CVE-2026-53580 8.1 HIGH Trilium arbitrary file read and denial of service via file:// URLs in the automatic image-
CVE-2026-77438 7.5 HIGH Trilium unauthenticated share-search discloses password-protected and hidden shared notes

IV. Related Vulnerabilities

Same product: Trilium
Same vendor: TriliumNext
Same weakness: CWE-79

V. Comments for CVE-2026-53579

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