A vulnerability was detected in ZenCart 2.1.0. Affected by this vulnerability is an unknown functionality of the component CKEditor. The manipulation leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The vendor declares this as "intended behavior, allowed for authorized administrators".
Affected packages The vulnerability has been discovered in Code Snippet GeSHi plugin. All integrators that use GeSHi syntax highlighter on the backend side can be affected.
Impact A potential vulnerability has been discovered in CKEditor 4 Code Snippet GeSHi plugin. The vulnerability allowed a reflected XSS attack by exploiting a flaw in the GeSHi syntax highlighter library hosted by the victim.
The GeSHi library was included as a vendor dependency in CKEditor 4 source files. In a specific scenario, an attacker could craft a malicious script that could be executed by sending a request to the GeSHi library hosted on a PHP web server.
Patches
The GeSHi library is no longer actively maintained. Due to the lack of ongoing support and updates, potential security vulnerabilities have been identified with its continued use. To mitigate these risks and enhance the overall security of the CKEditor 4, we have decided to completely remove the GeSHi library as a dependency. This change aims to maintain a secure environment and reduce the risk of any security incidents related to outdated or unsupported software.
To integrators who still want to use the GeSHi syntax highlighter, we recommend manually adding the GeSHi library . Please be aware of and understand the potential security vulnerabilities associated with its use.
The fix is be available in version 4.25.0-lts.
Acknowledgements
The CKEditor 4 team would like to thank Jiasheng He from Qihoo 360 for recognizing and reporting this vulnerability.
For more information
Email us at security@cksource.com if you have any questions or comments about this advisory.
Affected packages The vulnerability has been discovered in the samples that use the preview feature:
samples/old//.html plugins/[plugin name]/samples//.html
All integrators that use these samples in the production code can be affected.
Impact
A potential vulnerability has been discovered in one of CKEditor's 4 samples that are shipped with production code. The vulnerability allowed to execute JavaScript code by abusing the misconfigured preview feature. It affects all users using the CKEditor 4 at version < 4.24.0-lts with affected samples used in a production environment.
Patches The problem has been recognized and patched. The fix will be available in version 4.24.0-lts.
For more information Email us at security@cksource.com if you have any questions or comments about this advisory.
Acknowledgements The CKEditor 4 team would like to thank Marcin Wyczechowski & Michał Majchrowicz AFINE Team for recognizing and reporting this vulnerability.
Affected packages The vulnerability has been discovered in the core HTML parsing module and may affect all editor instances that: Enabled full-page editing mode, or enabled CDATA elements in Advanced Content Filtering configuration (defaults to script and style elements).
Impact
A potential vulnerability has been discovered in CKEditor 4 HTML processing core module. The vulnerability allowed to inject malformed HTML content bypassing Advanced Content Filtering mechanism, which could result in executing JavaScript code. An attacker could abuse faulty CDATA content detection and use it to prepare an intentional attack on the editor. It affects all users using the CKEditor 4 at version < 4.24.0-lts.
Patches The problem has been recognized and patched. The fix will be available in version 4.24.0-lts.
For more information Email us at security@cksource.com if you have any questions or comments about this advisory.
Acknowledgements The CKEditor 4 team would like to thank Michal Frýba from ALEF NULA for recognizing and reporting this vulnerability.
CKEditor is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote authenticated attacker could exploit this vulnerability to inject malicious script into a Web page which would be executed in a victim's Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.
CKEditor is vulnerable to a denial of service, caused by a regular expression denial of service (ReDoS) flaw in the dialog plugin. By sending a specially-crafted regex input, a remote attacker could exploit this vulnerability to cause a significant performance drop and results in a browser tab freeze.
Affected packages The vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4.
Impact A potential vulnerability has been discovered in CKEditor 4 HTML processing core module. 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.
Patches The problem has been recognized and patched. The fix will be available in version 4.17.0.
For more information Email us at security@cksource.com if you have any questions or comments about this advisory.
Acknowledgements The CKEditor 4 team would like to thank William Bowling (wbowling) for recognizing and reporting this vulnerability.
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.
ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 Fake Objects package. The vulnerability allowed to inject malformed Fake Objects HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version < 4.16.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.
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.
It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted URL-like text into the editor, and then press Enter or Space (in the Autolink plugin).
CKEditor is vulnerable to a denial of service, caused by a regular expression denial of service (ReDoS) flaw in the Advanced Tab for Dialogs plugin. By persuading a victim to paste specially-crafted text into the Styles input of specific dialogs, a remote attacker could exploit this vulnerability to cause a denial of service condition.
A cross-site scripting (XSS) vulnerability in the Color Dialog plugin for CKEditor 4.15.0 allows remote attackers to run arbitrary web script after persuading a user to copy and paste crafted HTML code into one of editor inputs.
A cross-site scripting (XSS) vulnerability in the WSC plugin through 5.5.7.5 for CKEditor 4 allows remote attackers to run arbitrary web script inside an IFRAME element by injecting a crafted HTML element into the editor.
A cross-site scripting (XSS) vulnerability in the HTML Data Processor for CKEditor 4.0 before 4.14 allows remote attackers to inject arbitrary web script through a crafted "protected" comment (with the ckeprotected syntax).
CKEditor 4.x before 4.11.0 allows user-assisted XSS involving a source-mode paste.
Cross-site scripting (XSS) vulnerability in the Preview plugin before 4.4.3 in CKEditor allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.