Inclusion of Functionality from Untrusted Control Sphere in CKEditor 4
Published: October 13, 2021
SECURITY IDENTIFIERS
- CVE: CVE-2021-26272 (NVD)
- GHSA: GHSA-wpvm-wqr4-p7cw
- Vendor Advisory: https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first
GEM
SEVERITY
CVSS v3.x: 6.5 (Medium)
PATCHED VERSIONS
>= 5.1.2
DESCRIPTION
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).
RELATED
- https://nvd.nist.gov/vuln/detail/CVE-2021-26272
- https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first
- https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://github.com/advisories/GHSA-wpvm-wqr4-p7cw