CVE-2021-26271
CVSS V2 Medium 4.3
CVSS V3 Medium 6.5
Description
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).
Overview
- CVE ID
- CVE-2021-26271
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-01-26T21:15:12
- Last Modified Date
- 2021-12-01T16:16:59
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:ckeditor:ckeditor:*:*:*:*:*:*:*:* | 1 | OR | 4.0 | 4.16 |
| cpe:2.3:a:oracle:agile_plm:9.3.5:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:agile_plm:9.3.6:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:* | 1 | OR | 21.1.0 | |
| cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:*:*:*:*:*:*:*:* | 1 | OR | 8.0.6 | 8.0.9 |
| cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:8.1.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:8.1.1:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:* | 1 | OR | 9.2.6.0 | |
| cpe:2.3:a:oracle:siebel_ui_framework:*:*:*:*:*:*:*:* | 1 | OR | 21.9 | |
| cpe:2.3:a:oracle:webcenter_sites:12.2.1.3.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:webcenter_sites:12.2.1.4.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416 | Release Notes 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 | Vendor Advisory |
| https://www.oracle.com//security-alerts/cpujul2021.html | Patch Third Party Advisory |
| https://www.oracle.com/security-alerts/cpuoct2021.html | Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-26271 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26271 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:43:50 | Added to TrackCVE | |||
| 2022-12-05 20:57:42 | 2021-01-26T21:15Z | 2021-01-26T21:15:12 | CVE Published Date | updated |
| 2022-12-05 20:57:42 | 2021-12-01T16:16:59 | CVE Modified Date | updated | |
| 2022-12-05 20:57:42 | Analyzed | Vulnerability Status | updated |