What is the CVSS score of CVE-2021-47844?

CVE-2021-47844 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2021-47844?

Yes, a public proof-of-concept exploit is available for CVE-2021-47844. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2021-47844?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

CVE-2021-47844

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-01-16 disclosure@vulncheck.com

RCE XSS

6.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Jan 26, 2026 - 15:05 vuln.today

Public exploit code

CVE Published

Jan 16, 2026 - 19:16 nvd

MEDIUM 6.1

DescriptionCVE.org

Xmind 2020 contains a cross-site scripting vulnerability that allows attackers to inject malicious payloads into mind mapping files or custom headers. Attackers can craft malicious files with embedded JavaScript that execute system commands when opened, enabling remote code execution through mouse interactions or file opening.

AnalysisAI

Xmind 2020 contains a cross-site scripting vulnerability that allows attackers to inject malicious payloads into mind mapping files or custom headers. [CVSS 6.1 MEDIUM]

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Xmind 2020 contains a cross-site scripting vulnerability that allows attackers to inject malicious payloads into mind mapping files or custom headers. Attackers can craft malicious files with embedded JavaScript that execute system commands when opened, enabling remote code execution through mouse interactions or file opening.

Affected ProductsAI

Xmind 2020 contains a cross-site scripting vulnerability that allows attackers to inject malicious payloads into mind mapping files or custom headers.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

CVE-2021-47844 vulnerability details – vuln.today

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