MEDIUM6.1
GHSA-g68x-vvqq-pvw3
Ckeditor XSS Vulnerability
Quick fix
GHSA-g68x-vvqq-pvw3 — ckeditor: upgrade to the fixed version with the command below.
npm install ckeditor@4.11.0Details
CKEditor 4.x before 4.11.0 allows user-assisted XSS involving a source-mode paste. It was possible to execute XSS inside the CKEditor source area after persuading the victim to: (i) switch CKEditor to source mode, then (ii) paste a specially crafted HTML code, prepared by the attacker, into the opened CKEditor source area, and (iii) switch back to WYSIWYG mode. Although this is an unlikely scenario, it is recommended to upgrade to the latest editor version.
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Affected packages
Packagist/typo3/cms-core
Introduced in:
8.0.0Fixed in: 8.7.21Fix
composer require typo3/cms-core:^8.7.21Packagist/typo3/cms-core
Introduced in:
9.0.0Fixed in: 9.5.2Fix
composer require typo3/cms-core:^9.5.2References
- https://nvd.nist.gov/vuln/detail/CVE-2018-17960[ADVISORY]
- https://ckeditor.com/blog/CKEditor-4.11-with-emoji-dropdown-and-auto-link-on-typing-released[WEB]
- https://ckeditor.com/cke4/release/CKEditor-4.11.0[WEB]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2018-17960.yaml[WEB]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2018-17960.yaml[WEB]
- https://github.com/advisories/GHSA-g68x-vvqq-pvw3[ADVISORY]
- https://typo3.org/security/advisory/typo3-core-sa-2018-005[WEB]
- https://web.archive.org/web/20200227030123/http://www.securityfocus.com/bid/109205[WEB]
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html[WEB]