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CVE-2018-1000162

6.1 · MEDIUM

Parsedown version prior to 1.7.0 contains a Cross Site Scripting (XSS) vulnerability in `setMarkupEscaped` for escaping HTML that can result in JavaScript code execution.

Published Apr 18, 2018CWE-79EPSS 1.16%

Overview

CVE-2018-1000162 is a medium-severity vulnerability. It was published on April 18, 2018 and has a CVSS 3.0 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.0 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

Parsedown version prior to 1.7.0 contains a Cross Site Scripting (XSS) vulnerability in `setMarkupEscaped` for escaping HTML that can result in JavaScript code execution. This attack appears to be exploitable via specially crafted markdown that allows it to side step HTML escaping by breaking AST boundaries. This vulnerability appears to have been fixed in 1.7.0 and later.

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/Roave/SecurityAdvisories/issues/44#issuecomment-368594409GitHubgithub.com/erusev/parsedown/pull/495GitHubgithub.com/Roave/SecurityAdvisories/issues/44#issuecomment-368594409GitHubgithub.com/erusev/parsedown/pull/495

How CyberStrike helps

Frequently asked questions

What is CVE-2018-1000162?

CVE-2018-1000162 is a medium-severity vulnerability. It was published on April 18, 2018 and has a CVSS 3.0 base score of 6.1 (MEDIUM).

How severe is CVE-2018-1000162?

This vulnerability has a CVSS 3.0 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-2018-1000162?

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-2018-1000162?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-1000162 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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