CKEditor Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2021-33829)

Description

A cross-site scripting (XSS) vulnerability in the HTML Data Processor in CKEditor 4 4.14.0 through 4.16.x before 4.16.1 allows remote attackers to inject executable JavaScript code through a crafted comment because --!> is mishandled.

Remediation

References

CVE-2021-33829

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WordPress 4.6.x Multiple Vulnerabilities (4.6 - 4.6.14)

OpenSSL Cryptographic Issues Vulnerability (CVE-2011-5095)

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Severity

Medium

Classification

CVE-2021-33829 CWE-707 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N