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CVE-2021-43833

8.1 · HIGH

eLabFTW is an electronic lab notebook manager for research teams.

Published Dec 16, 2021CWE-287EPSS 0.84%

Overview

CVE-2021-43833 is a high-severity vulnerability. It was published on December 16, 2021 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

eLabFTW is an electronic lab notebook manager for research teams. In versions prior to 4.2.0 there is a vulnerability which allows any authenticated user to gain access to arbitrary accounts by setting a specially crafted email address. This vulnerability impacts all instances that have not set an explicit email domain name allowlist. Note that whereas neither administrators nor targeted users are notified of a change, an attacker will need to control an account. The default settings require administrators to validate newly created accounts. The problem has been patched. Users should upgrade to at least version 4.2.0. For users unable to upgrade enabling an email domain allow list (from Sysconfig panel, Security tab) will completely resolve the issue.

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/elabftw/elabftw/releases/tag/4.2.0GitHubgithub.com/elabftw/elabftw/security/advisories/GHSA-v659-q2fh-v99wGitHubgithub.com/elabftw/elabftw/releases/tag/4.2.0GitHubgithub.com/elabftw/elabftw/security/advisories/GHSA-v659-q2fh-v99w

How CyberStrike helps

Frequently asked questions

What is CVE-2021-43833?

CVE-2021-43833 is a high-severity vulnerability. It was published on December 16, 2021 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2021-43833?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-43833?

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-2021-43833?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-43833 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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