CVE-2020-9440
Linux Fedora vulnerability analysis and mitigation

Overview

A cross-site scripting (XSS) vulnerability exists in the WSC plugin through version 5.5.7.5 for CKEditor 4. The vulnerability allows remote attackers to execute arbitrary web script inside an IFRAME element by injecting crafted HTML elements into the editor (NVD, MITRE).

Technical details

The vulnerability affects the WSC plugin in CKEditor 4 versions up to 5.5.7.5. It enables attackers to inject malicious web scripts through crafted HTML elements, specifically targeting IFRAME elements within the editor (CKEditor Blog).

Impact

When successfully exploited, this vulnerability allows attackers to execute arbitrary web scripts in the context of the user's browser, potentially leading to unauthorized access to sensitive information or manipulation of editor content (NVD).

Mitigation and workarounds

Users should upgrade to CKEditor 4.14 or later versions which contain the security fix for this vulnerability (CKEditor Blog).

Additional resources


SourceThis report was generated using AI

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