CVE-2023-43643

CVSS 3.1 Score 6.1 of 10 (medium)

Details

Published Oct 9, 2023
Updated: Oct 13, 2023
CWE ID 79

Summary

CVE-2023-43643 is a vulnerability affecting AntiSamy, a library used for sanitizing HTML from untrusted sources. Before version 1.7.4, AntiSamy contained a mXSS (mutation cross-site scripting) flaw, which was due to inadequate processing of HTML during sanitization. This issue arose when the 'preserveComments' directive was enabled in the policy file along with specific tags. Maliciously crafted inputs could cause AntiSamy to interpret elements within comment tags as executable code, resulting in a security breach. This vulnerability has been mitigated in AntiSamy versions 1.7.4 and later.

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