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CVE-2018-17960

22
FAUCET Score

CVE-2018-17960 describes a user-assisted Cross-Site Scripting (XSS) vulnerability in CKEditor 4.x prior to version 4.11.0, specifically when a malicious paste operation occurs in source mode. This medium-severity vulnerability (CVSS 6.1) requires user interaction (UI:R) and could lead to low impact on confidentiality and integrity (C:L/I:L). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.0, < 4.11.0CPE matchmatch criteria
cpe:2.3:a:ckeditor:ckeditor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/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
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.95%
Probability of exploitation in next 30 days
EPSS Percentile
78.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0195 is in the 89th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

composerpatch availablevia ghsa
Product: typo3/cms-coreFixed in: 8.7.21
composerpatch availablevia ghsa
Product: typo3/cms-coreFixed in: 9.5.2
composerpatch availablevia ghsa
Product: typo3/cmsFixed in: 8.7.21
composerpatch availablevia ghsa
Product: typo3/cmsFixed in: 9.5.2
npmpatch availablevia ghsa
Product: ckeditorFixed in: 4.11.0

Vendor Advisories (1)

npmGHSA-g68x-vvqq-pvw3medium

Ckeditor XSS Vulnerability

Nov 21, 2018

References

ckeditor.com / blog/CKEditor-4.11-with-emoji-dropdown-and-auto-link-on-typing-released
ExploitVendor Advisory
ckeditor.com / cke4/release/CKEditor-4.11.0
Vendor Advisory
oracle.com / technetwork/security-advisory/cpujul2019-5072835.html
securityfocus.com / bid/109205