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CVE-2023-43643

6.1 · MEDIUM
Published Oct 9, 2023 antisamy_project CWE-79 EPSS 0.47% (39th pctl)

Overview

CVE-2023-43643 is a medium-severity vulnerability affecting antisamy_project antisamy. It was published on October 9, 2023 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

AntiSamy is a library for performing fast, configurable cleansing of HTML coming from untrusted sources. Prior to version 1.7.4, there is a potential for a mutation XSS (mXSS) vulnerability in AntiSamy caused by flawed parsing of the HTML being sanitized. To be subject to this vulnerability the `preserveComments` directive must be enabled in your policy file and also allow for certain tags at the same time. As a result, certain crafty inputs can result in elements in comment tags being interpreted as executable when using AntiSamy's sanitized output. This issue has been patched in AntiSamy 1.7.4 and later.

Remediation

Check the references section for vendor advisories and patches from antisamy_project. Update antisamy to the latest patched version. 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.

Affected Products

Vendor Product Versions Status
antisamy_project antisamy >= 0, < 1.7.4 Affected

Frequently Asked Questions

What is CVE-2023-43643?

CVE-2023-43643 is a medium-severity vulnerability affecting antisamy_project antisamy. It was published on October 9, 2023 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2023-43643?

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-2023-43643?

Check the references section for vendor advisories and patches from antisamy_project. Update antisamy to the latest patched version. 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-2023-43643?

CyberStrike's AI-powered security agents can automatically detect CVE-2023-43643 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.