Cyber Resilience

CVE-2022-21241

Critical

Published: 08 February 2022

Published
08 February 2022
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS Score 0.2999 96.8th percentile
Risk Priority 37 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-21241 is a critical-severity Cross-site Scripting (CWE-79) vulnerability in Csv\+ Project Csv\+. Its CVSS base score is 9.6 (Critical).

Operationally, ranked in the top 3.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2022-21241 is a cross-site scripting vulnerability (CWE-79) affecting CSV+ versions prior to 0.8.1. The flaw permits injection of arbitrary scripts or operating system commands through a specially crafted CSV file containing an HTML anchor tag, and carries a CVSS 3.1 base score of 9.6 reflecting network attack vector, low complexity, and no required authentication or privileges.

A remote unauthenticated attacker can exploit the issue by supplying a malicious CSV file to a victim who opens it in the vulnerable application, resulting in execution of attacker-controlled scripts or commands with impacts to confidentiality, integrity, and availability.

The referenced advisories and release notes direct users to upgrade to CSV+ 0.8.1, which resolves the input-handling weakness. The associated EPSS score has remained at 0.2999 with no material increase observed since disclosure.

EU & UK References

Vulnerability details

Cross-site scripting vulnerability in CSV+ prior to 0.8.1 allows a remote unauthenticated attacker to inject an arbitrary script or an arbitrary OS command via a specially crafted CSV file that contains HTML a tag.

CWE(s)
CWE-79

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

csv\+ project
csv\+
≤ 0.8.1

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation
addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering
addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References