CVE-2018-17960 json
Ckeditor XSS Vulnerability
published 2018-11-14 7 y ago modified 2026-06-17 4 mo ago also GHSA-g68x-vvqq-pvw3 , EUVD-2018-0752
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 80%
- public exploits
- 0
- none known
Summary
CKEditor 4.x before 4.11.0 allows user-assisted XSS involving a source-mode paste.
Patch / fix
- npm ckeditor 4.11.0
- packagist typo3/cms-core 8.7.21, 9.5.2
- packagist typo3/cms 8.7.21, 9.5.2
- ckeditor ckeditor 4.11.0
- ckeditor Debian 12 4.11.1+dfsg-1
debian advisories DEBIAN-CVE-2018-17960
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2018-17960 updated cvss 6.1
ckeditor: XSS involving a source-mode paste
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
1.95% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- ckeditor.com https://ckeditor.com/blog/CKEditor-4.11-with-emoji-dropdown-and-auto-link-on-typing-released/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | ckeditor | <4.11.0 |
4.11.0 |
| packagist | typo3/cms-core | >=8.0.0, <8.7.21 >=9.0.0, <9.5.2 |
8.7.21 9.5.2 |
| packagist | typo3/cms | >=8.0.0, <8.7.21 >=9.0.0, <9.5.2 |
8.7.21 9.5.2 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
ckeditor.com
/blog/CKEditor-4.11-with-emoji-dropdown-and-auto-link-on-typing-released/
exploit, vendor-advisory
-
ckeditor.com
/cke4/release/CKEditor-4.11.0
web, vendor-advisory
-
oracle.com
/technetwork/security-advisory/cpujul2019-5072835.html
web
-
securityfocus.com
/bid/109205
vdb-entry
-
nvd.nist.gov
/vuln/detail/CVE-2018-17960
advisory
-
ckeditor.com
/blog/CKEditor-4.11-with-emoji-dropdown-and-auto-link-on-typing-released
web
-
github.com
/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2018-17960.yaml
web
-
github.com
/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2018-17960.yaml
web
-
github.com
/advisories/GHSA-g68x-vvqq-pvw3
advisory
-
typo3.org
/security/advisory/typo3-core-sa-2018-005
web
-
web.archive.org
/web/20200227030123/http://www.securityfocus.com/bid/109205
web
Sources
- CVE List CVE-2018-17960
- GitHub Advisory GHSA-g68x-vvqq-pvw3
- NVD CVE-2018-17960
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.