CVE-2021-47844Public exploitNetwork attack vector

System command execution via unneutralized mind-map content

Published Jan 16, 2026 · Updated Jan 16, 2026

Stored cross-site scripting in Xmind 2020 allows attackers to execute system commands by supplying a crafted mind-map file. The desktop client renders unneutralized HTML from topic titles or custom headers, letting event-handler JavaScript invoke exposed Node.js process APIs. Execution requires a victim to open the file or interact with its content, and commands run with the victim's desktop account privileges.

CVSS severity5.1
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Xmind 2020 allows attackers to execute system commands by supplying a crafted mind-map file. The desktop client renders unneutralized HTML from topic titles or custom headers, letting event-handler JavaScript invoke exposed Node.js process APIs. Execution requires a victim to open the file or interact with its content, and commands run with the victim's desktop account privileges.

The record

CVE
CVE-2021-47844
Published
Jan 16, 2026
Updated
Jan 16, 2026
Vendor
Xmind
Product
Xmind
Classifications
CWE-79, T1203, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 16, 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=2020

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Xmind · Xmindversion=2020

Published CVSS scores

5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
6.1VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution
T1204.002User Execution: Malicious File

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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