Vulnerability Details : CVE-2021-26271
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).
Vulnerability category: File inclusion
Products affected by CVE-2021-26271
- cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:webcenter_sites:12.2.1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:webcenter_sites:12.2.1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:siebel_ui_framework:*:*:*:*:*:*:*:*
- Oracle » Financial Services Analytical Applications InfrastructureVersions from including (>=) 8.0.6 and up to, including, (<=) 8.0.9cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:8.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:8.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:agile_plm:9.3.5:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:agile_plm:9.3.6:*:*:*:*:*:*:*
- cpe:2.3:a:ckeditor:ckeditor:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-26271
0.64%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 68 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-26271
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-26271
-
The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-26271
-
https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416
ckeditor4/CHANGES.md at major · ckeditor/ckeditor4 · GitHubRelease Notes;Third Party Advisory
-
https://www.oracle.com//security-alerts/cpujul2021.html
Oracle Critical Patch Update Advisory - July 2021Patch;Third Party Advisory
-
https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first
CKEditor 4.16 with improved image pasting, High Contrast support and a new color APIVendor Advisory
-
https://www.oracle.com/security-alerts/cpuoct2021.html
Oracle Critical Patch Update Advisory - October 2021Patch;Third Party Advisory
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