Description
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. CKEditor4 prior to version 4.18.0 contains a vulnerability in the `dialog` plugin. The vulnerability allows abuse of a dialog input validator regular expression, which can cause a significant performance drop resulting in a browser tab freeze. A patch is available in version 4.18.0. There are currently no known workarounds.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- ckeditor / ckeditor4< 4.18.0 – < 4.18.0
References
- MISChttps://ckeditor.com/cke4/release/CKEditor-4.18.0
- VENDOR_ADVISORYhttps://github.com/ckeditor/ckeditor4/security/advisories/GHSA-f6rf-9m92-x2hh
- VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpujul2022.html
- MISChttps://www.drupal.org/sa-core-2022-005
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WOZGMCYDB2OKKULFXZKM6V7JJW4ZZHJP/
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VR76VBN5GW5QUBJFHVXRX36UZ6YTCMW6/
Updated 8m ago · 8 sources