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CVE-2026-48996— Trilium: Malicious import with GeoMap marker title XSS leads to RCE on the desktop client

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 0.103.0及之前版本存在安全漏洞，该漏洞源于默认的“Safe import”过滤器未清理笔记标题，且GeoMap笔记视图将标记笔记标题插入原始HTML并渲染为innerHTML，可能允许注入脚本，导致跨站脚本攻击；在桌面客户端上，由于启用了Node集成，可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-2026-48996

Vulnerability Information
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Vulnerability Title
Trilium: Malicious import with GeoMap marker title XSS leads to RCE on the desktop client
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 does not sanitize note titles, and the GeoMap note view interpolates a marker note's title into raw HTML that is rendered as innerHTML, allowing an attacker-supplied import archive to inject script that runs when the map is displayed. Because Safe import neutralizes scripts but never escapes titles, a note whose title contains an HTML event-handler payload survives the import and executes as soon as the victim opens the GeoMap that renders its marker. 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 0.103.0及之前版本存在安全漏洞，该漏洞源于默认的“Safe import”过滤器未清理笔记标题，且GeoMap笔记视图将标记笔记标题插入原始HTML并渲染为innerHTML，可能允许注入脚本，导致跨站脚本攻击；在桌面客户端上，由于启用了Node集成，可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-2026-48996

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III. Intelligence Information for CVE-2026-48996

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Patches & Fixes for CVE-2026-48996 (1)

Vendor Advisories for CVE-2026-48996 (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-2026-53579 9.3 CRITICAL Trilium: Note Import to RCE via Book Note
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-2026-48996

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