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CVE-2023-2142

6.1 · MEDIUM

In Nunjucks versions prior to version 3.2.4, it was possible to bypass the restrictions which are provided by the autoescape functionality.

Published Nov 26, 2024CWE-79EPSS 0.36%

Overview

CVE-2023-2142 is a medium-severity vulnerability. It was published on November 26, 2024 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In Nunjucks versions prior to version 3.2.4, it was

possible to bypass the restrictions which are provided by the autoescape

functionality. If there are two user-controlled parameters on the same

line used in the views, it was possible to inject cross site scripting

payloads using the backslash \ character.

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

Refbugzilla.mozilla.org/show_bug.cgi?id=1825980GitHubgithub.com/mozilla/nunjucks/security/advisories/GHSA-x77j-w7wf-fjmw

How CyberStrike helps

Frequently asked questions

What is CVE-2023-2142?

CVE-2023-2142 is a medium-severity vulnerability. It was published on November 26, 2024 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2023-2142?

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-2142?

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-2023-2142?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-2142 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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