XSS in Ckeditor Ckeditor5
CVE-2024-45613
CKEditor 5 is a JavaScript rich-text editor. Starting in version 40.0.0 and prior to version 43.1.1, a Cross-Site Scripting (XSS) vulnerability is present in the CKEditor 5 clipboard package. This vulnerability could be triggered by a specific user action, leading to unauthorized JavaScript code execution, if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration. This vulnerability only affects installations where the Block Toolbar plugin is enabled and either the General HTML Support (with a configuration that permits unsafe markup) or the HTML Embed plugin is also enabled. A fix for the problem is available in version 43.1.1. As a workaround, one may disable the block toolbar plugin.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.005 (38.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Ckeditor Ckeditor5 — versions >= 40.0.0, < 43.1.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2024-45613?
- CVE-2024-45613 is a medium-severity vulnerability in Ckeditor Ckeditor5, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2024-09-25.
- How severe is CVE-2024-45613?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2024-45613 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.