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CVE-2023-39143

9.8 · CRITICAL

PaperCut NG and PaperCut MF before 22.1.3 on Windows allow path traversal, enabling attackers to upload, read, or delete arbitrary files.

Published Aug 4, 2023CWE-22EPSS 80.06%

Overview

CVE-2023-39143 is a critical-severity vulnerability. It was published on August 4, 2023 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

PaperCut NG and PaperCut MF before 22.1.3 on Windows allow path traversal, enabling attackers to upload, read, or delete arbitrary files. This leads to remote code execution when external device integration is enabled (a very common configuration).

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.horizon3.ai/cve-2023-39143-papercut-path-traversal-file-upload-rce-vulnerability/Refwww.papercut.com/kb/Main/securitybulletinjuly2023/Refwww.horizon3.ai/cve-2023-39143-papercut-path-traversal-file-upload-rce-vulnerability/Refwww.papercut.com/kb/Main/securitybulletinjuly2023/

How CyberStrike helps

Frequently asked questions

What is CVE-2023-39143?

CVE-2023-39143 is a critical-severity vulnerability. It was published on August 4, 2023 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2023-39143?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-39143?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-39143?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-39143 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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