CVE-2026-53578Public exploitHinoki check available

Code execution via unsanitized mind map imports

Published Aug 27, 2026 · Updated Aug 27, 2026

Stored XSS in Trilium Notes 0.103.0 and earlier allows attackers to execute code by inducing a user to import a crafted mind map. MindMap.tsx passes unsanitized mindMap JSON to Mind Elixir, whose dangerouslySetInnerHTML property writes attacker-controlled markup to innerHTML. Execution requires the victim to import the archive and open its mind map; Node integration then grants the injected script host-level code execution.

CVSS severity9.3
Critical
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stored XSS in Trilium Notes 0.103.0 and earlier allows attackers to execute code by inducing a user to import a crafted mind map. MindMap.tsx passes unsanitized mindMap JSON to Mind Elixir, whose dangerouslySetInnerHTML property writes attacker-controlled markup to innerHTML. Execution requires the victim to import the archive and open its mind map; Node integration then grants the injected script host-level code execution.

The record

CVE
CVE-2026-53578
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
Trilium Next
Product
Trilium Notes
Classifications
CWE-79, CWE-94, T1204.002, T1059.007
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.104.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Trilium Next · Trilium Notesversion=< 0.104.0

Published CVSS scores

9.3GitHub CNACVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1204.002Malicious File
T1059.007JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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