medium6.5
CVE-2021-26271
CKEditor 4 ReDoS Vulnerability
Impact
It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted text into the Styles input of specific dialogs (in the Advanced Tab for Dialogs plugin).
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | ckeditor4-dev | < 4.16 | 4.16 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Ckeditor | Ckeditor | from 4.0 before 4.16 |
| Oracle | Agile Product Lifecycle Management | Versions 9.3.5, 9.3.6 |
| Oracle | Application Express | before 21.1.0 |
| Oracle | Financial Services Analytical Applications Infrastructure | from 8.0.6 through 8.0.9 Versions 8.1.0, 8.1.1 |
| Oracle | Jd Edwards Enterpriseone Tools | before 9.2.6.0 |
| Oracle | Siebel Ui Framework | before 21.9 |
| Oracle | Webcenter Sites | Versions 12.2.1.3.0, 12.2.1.4.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- 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://github.com/advisories/GHSA-jv4c-7jqq-m34x
- https://nvd.nist.gov/vuln/detail/CVE-2021-26271
- https://web.archive.org/web/20210128132707/https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first