Ckeditor
CVE-2021-41165
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionNVD
CKEditor4 is an open source WYSIWYG HTML editor. In affected version a vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4. The vulnerability allowed to inject malformed comments 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.
AnalysisAI
CKEditor4 is an open source WYSIWYG HTML editor. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
Technical ContextAI
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. CKEditor4 is an open source WYSIWYG HTML editor. In affected version a vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4. The vulnerability allowed to inject malformed comments 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. Affected products include: Ckeditor, Drupal, Oracle Agile Product Lifecycle Management, Oracle Application Express, Oracle Banking Apis. Version information: version 4.17.0..
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
A unrestricted file upload vulnerability was discovered in the ‘Browse and upload images’ feature of the CKEditor v1.2.3
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
CKEditor 4.x before 4.11.0 allows user-assisted XSS involving a source-mode paste. Rated medium severity (CVSS 6.1), thi
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. Rated high severity (CVSS 7.5), this vulnerability
Unspecified vulnerability in the CKeditor module 6.x-2.x before 6.x-2.3 and the CKEditor module 6.x-1.x before 6.x-1.9 a
It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted URL
It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted tex
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. Rated medium severity (CVSS 6.1), this vulnerabili
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. Rated medium severity (CVSS 6.1), this vulnerabili
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. Rated medium severity (CVSS 6.1), this vulnerabili
A Cross-Site scripting vulnerability has been found in CKSource CKEditor affecting versions 4.15.1 and earlier. Rated me
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. Rated medium severity (CVSS 6.1), this vulnerabili
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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