MEDIUM
A cross-site scripting (XSS) vulnerability in the HTML Data Processor for CKEditor 4.0 before 4.14 allows remote attackers to inject arbitrary web script through a crafted "protected" comment (with the cke_protected syntax)
Published Mar 7, 2020
6.1
MEDIUMCVSS 3.1
EPSS 4.31%
Description
A cross-site scripting (XSS) vulnerability in the HTML Data Processor for CKEditor 4.0 before 4.14 allows remote attackers to inject arbitrary web script through a crafted "protected" comment (with the cke_protected syntax).
Affected products
No data.
Configuration 2
OR
- 30
- 31
- 32
Configuration 3
Configuration 4
OR
- 9.3.5
- 9.3.6
- < 20.2
- < 9.2.5.2
- n/a
- 8.56
- 8.57
- 8.58
- < 21.0
- 11.1.1.9.0
- 12.2.1.3.0
- 12.2.1.4.0
Configuration 5
OR
- 2.6.2
- 2.7.0
- 2.7.1
- 2.10.0
- 2.12.0
- ≥ 2.3.0 · ≤ 2.4.0
No data.
No Red Hat product state for this CVE.
ckeditor4
npm
Introduced 0 Fixed 4.14.0
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | ckeditor4 | 0 | 4.14.0 |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
6.1 MEDIUM NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Impact Low
Integrity Impact Low
Availability Impact None
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
4.31% 0.04308
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.04308
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 4.31% (0.04308) | 90.86th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.33% (0.04327) | 89.89th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.22% (0.01216) | 77.66th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.16% (0.00163) | 54.32th | v3 (v2023.03.01) |
| Feb 12, 2024 | 0.17% (0.00166) | 51.93th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00145) | 48.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.78% (0.01776) | 76.86th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.78% (0.01776) | 76.81th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.78% (0.01776) | 74.78th | v2 (v2022.01.01) |
| Feb 8, 2022 | 17.64% (0.17642) | 93.35th | v2 (v2022.01.01) |
| Feb 4, 2022 | 17.25% (0.17253) | 93.13th | v2 (v2022.01.01) |
| Feb 3, 2022 | 10.23% (0.10235) | 87.52th | v1 |
| Jan 6, 2022 | 10.23% (0.10235) | 87.37th | v1 |
| Oct 21, 2021 | 2.48% (0.02478) | 79.01th | v1 |
| Sep 1, 2021 | 2.21% (0.02207) | 77.52th | v1 |
| Jun 15, 2021 | 2.21% (0.02207) | 0.00th | v1 |
| Apr 14, 2021 | 1.93% (0.01935) | 0.00th | v1 |
Weaknesses (1)
References (14)
- https://github.com/advisories/GHSA-vcjf-mgcg-jxjq Advisory
- https://github.com/ckeditor/ckeditor4 x_refsource_MISCProductThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7OJ4BSS3VEAEXPNSOOUAXX6RDNECGZNO/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L322YA73LCV3TO7ORY45WQDAFJVNKXBE/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M4HHYQ6N452XTCIROFMJOTYEUWSB6FR4/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7OJ4BSS3VEAEXPNSOOUAXX6RDNECGZNO/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L322YA73LCV3TO7ORY45WQDAFJVNKXBE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M4HHYQ6N452XTCIROFMJOTYEUWSB6FR4/
- https://nvd.nist.gov/vuln/detail/CVE-2020-9281
- https://www.oracle.com/security-alerts/cpuApr2021.html x_refsource_MISCPatchThird Party Advisory
- https://www.oracle.com/security-alerts/cpujan2021.html x_refsource_MISCPatchThird Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.html x_refsource_MISCPatchVendor Advisory
- https://www.oracle.com/security-alerts/cpuoct2020.html x_refsource_MISCPatchThird Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.html x_refsource_MISCNot ApplicableThird Party Advisory
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Mar 7, 2020
Updated Aug 4, 2024
Reserved Feb 19, 2020
Link CVE-2020-9281
CISA Vulnrichment
GHSA-VCJF-MGCG-JXJQ Updated n/a