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Vulnerability Assessment

Weakness
CWE
CWE-829
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V15 - Secure Coding and Architecture Trusted source inclusion only
Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 2.2% exploitation probability (EPSS)

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AnalysisAI

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. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

npm ckeditor4 fix: 4.16.0

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in npm

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Technical ContextAI · show details

This vulnerability is classified under CWE-829. 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). Affected products include: Ckeditor, Oracle Agile Plm, Oracle Application Express, Oracle Banking Party Management, Oracle Commerce Merchandising. Version information: before 4.16.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionNVD

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).

Threat Intelligence Overview

EPSS Score
2.2%
Top 19% exploitable
Data Quality
4 sources
Confidence: Medium
NVD CVE.org EPSS GitHub VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 2.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

34
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:ckeditor:ckeditor:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:agile_plm:9.3.5:*:*:*:*:*:*:*
cpe:2.3:a:oracle:agile_plm:9.3.6:*:*:*:*:*:*:*
cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_party_management:2.7.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:commerce_merchandising:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:commerce_merchandising:11.1.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:commerce_merchandising:11.2.0:*:*:*:*:*:*:*
cpe: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:financial_services_model_management_and_governance:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:siebel_ui_framework:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:webcenter_sites:12.2.1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:webcenter_sites:12.2.1.4.0:*:*:*:*:*:*:*

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CKEditor 4.x before 4.11.0 allows user-assisted XSS involving a source-mode paste. Rated medium severity (CVSS 6.1), thi
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CVE-2022-24729 HIGH
7.5 Mar 16

CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. Rated high severity (CVSS 7.5), this vulnerability
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6.8 Sep 05

Unspecified vulnerability in the CKeditor module 6.x-2.x before 6.x-2.3 and the CKEditor module 6.x-1.x before 6.x-1.9 a
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A cross-site scripting (XSS) vulnerability in the HTML Data Processor for CKEditor 4.0 before 4.14 allows remote attacke
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It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted tex
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Same weakness CWE-829 – Inclusion of Functionality from Untrusted Control Sphere

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CVE-2025-32463 CRITICAL POC
9.3
CVE-2026-0770 CRITICAL POC
9.8
CVE-2025-27607 HIGH POC
8.8
CVE-2026-1699 CRITICAL POC
10.0
CVE-2026-27941 CRITICAL POC
9.9
CVE-2020-8128 CRITICAL POC
9.8
CVE-2019-13589 CRITICAL POC
9.8
CVE-2025-65964 CRITICAL POC
9.4

Same technique Information Disclosure

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CVE-2019-2725 CRITICAL POC
9.8
CVE-2021-34523 CRITICAL POC
9.0
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2025-68613 HIGH POC
8.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5

References

Advisories & patches
PATCH https://www.oracle.com//security-alerts/cpujul2021.html PATCH https://www.oracle.com/security-alerts/cpuoct2021.html ADVISORY https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first ADVISORY https://vuldb.com/vuln/168793 ADVISORY https://vuldb.com/vuln/178955 ADVISORY https://vuldb.com/vuln/179244 ADVISORY https://vuldb.com/vuln/184642 REF https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416 REF https://www.oracle.com/security-alerts/cpujan2022.html

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