CVE-2021-41164

Advanced Content Filter (ACF) vulnerability allowing to execute JavaScript code using malformed HTML

CKEditor4 is an open source WYSIWYG HTML editor. In affected versions a vulnerability has been discovered in the Advanced Content Filter (ACF) module and may affect all plugins used by CKEditor 4. The vulnerability allowed to inject malformed HTML bypassing content sanitization, which could result in executing JavaScript code. It affects all users using the CKEditor 4 at version < 4.17.0. The problem has been recognized and patched. The fix will be available in version 4.17.0.

We have discovered 9,152 live websites that are affected by CVE-2021-41164.

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Affected Software

Product  CKEditor
Category Rich Text Editors
Vulnerable Domains9,152 live websites (77.74% of CKEditor install base)
Vulnerable Versions
  • from 0 before 4.17
Vulnerable Versions Count81 versions ( 81.82% of all versions)


Common Weakness Enumeration

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')



Details

  • Published - Nov 17, 2021
  • Updated - Aug 4, 2024

CVE-2021-41164 usage by Country

United States4,481 websites


France791 websites
Germany464 websites
Iran375 websites
Russia286 websites
Korea, South270 websites
Japan201 websites
GB161 websites
Poland137 websites
Singapore129 websites

CVE-2021-41164 usage by TLD

.com3,391 websites
.org1,016 websites
.net411 websites
.fr311 websites
.ru216 websites
.de162 websites
.com.br135 websites
.pl115 websites
.eu91 websites
.nl91 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2021-41164

Top websites that are affected by CVE-2021-41164. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
***********.***.au Australia*,***
*****.net Ukraine**,***
****.***********.***.au Australia**,***
***.org United States**,***
****.***.au Australia**,***
********.org United States**,***
*******.***.ua United States**,***
***.ca United States**,***
***.***.au Australia**,***
****************.com United States**,***
See full domain list

FAQ

CVE-2021-41164 is Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in CKEditor
A total of 9,152 websites have been identified as vulnerable to CVE-2021-41164, discovered through global website indexing conducted by WebTechSurvey.
CKEditor is susceptible to CVE-2021-41164 vulnerability.
CKEditor versions before 4.17 are vulnerable to CVE-2021-41164.
Version 4.17 of CKEditor addresses the CVE-2021-41164 security vulnerability.