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CVE-2021-41243

9.1 · CRITICAL

There is a Potential Zip Slip Vulnerability and OS Command Injection Vulnerability on the management system of baserCMS.

Published Nov 26, 2021CWE-78EPSS 2.17%

Overview

CVE-2021-41243 is a critical-severity vulnerability. It was published on November 26, 2021 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

There is a Potential Zip Slip Vulnerability and OS Command Injection Vulnerability on the management system of baserCMS. Users with permissions to upload files may upload crafted zip files which may execute arbitrary commands on the host operating system. This is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users. If you are eligible, please update to the new version as soon as possible.

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

GitHubgithub.com/baserproject/basercms/commit/9088b99c329d1faff3a2f1269f37b9a9d8d5f6ffGitHubgithub.com/baserproject/basercms/security/advisories/GHSA-7rpc-9m88-cf9wGitHubgithub.com/baserproject/basercms/commit/9088b99c329d1faff3a2f1269f37b9a9d8d5f6ffGitHubgithub.com/baserproject/basercms/security/advisories/GHSA-7rpc-9m88-cf9w

How CyberStrike helps

Frequently asked questions

What is CVE-2021-41243?

CVE-2021-41243 is a critical-severity vulnerability. It was published on November 26, 2021 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2021-41243?

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-41243?

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-2021-41243?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-41243 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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