CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4 prior to version 4.18.0. The vulnerability allows someone to inject malformed HTML bypassing content sanitization, which could result in executing JavaScript code. This problem has been patched in version 4.18.0. There are currently no known workarounds.
CVE-2022-24728
This medium-severity CVE scores 5.4 under NVD CVSS v3. EPSS exploit probability: 1.2%, top 35% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.4
- EG Score
- 5.4(medium)
- EPSS
- 64.7%
- KEV
- Not listed
Published
March 16, 2022
Last Modified
November 21, 2024
References (14)
- security-advisories@githubhttps://ckeditor.com/cke4/release/CKEditor-4.18.0
- security-advisories@githubhttps://github.com/ckeditor/ckeditor4/commit/d158413449692d920a778503502dcb22881bc949
- security-advisories@githubhttps://github.com/ckeditor/ckeditor4/security/advisories/GHSA-4fc4-4p5g-6w89
- security-advisories@githubhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VR76VBN5GW5QUBJFHVXRX36UZ6YTCMW6/
- security-advisories@githubhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WOZGMCYDB2OKKULFXZKM6V7JJW4ZZHJP/
- security-advisories@githubhttps://www.drupal.org/sa-core-2022-005
- security-advisories@githubhttps://www.oracle.com/security-alerts/cpujul2022.html
- af854a3a-2127-422b-91ae-364da2661108https://ckeditor.com/cke4/release/CKEditor-4.18.0
- af854a3a-2127-422b-91ae-364da2661108https://github.com/ckeditor/ckeditor4/commit/d158413449692d920a778503502dcb22881bc949
- af854a3a-2127-422b-91ae-364da2661108https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-4fc4-4p5g-6w89
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VR76VBN5GW5QUBJFHVXRX36UZ6YTCMW6/
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WOZGMCYDB2OKKULFXZKM6V7JJW4ZZHJP/
- af854a3a-2127-422b-91ae-364da2661108https://www.drupal.org/sa-core-2022-005
- af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujul2022.html
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | ckeditor (4.5.7+dfsg-2ubuntu0.16.04.1~esm2) @ xenial | 2026-05-26 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(2 across 2 ecosystems)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ckeditor4 | — | 4.18.0 | — |
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| drupal/core | 8.0.0 ... 9.3.7 (235 versions) | 9.3.8 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 13× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 22:56 UTCEG score recompute
- 2026-07-22 14:06 UTCEPSS rescore
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- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 01:27 UTCEG score recompute
- 2026-05-26 01:27 UTCVendor advisory
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Frequently asked(5)
What is CVE-2022-24728?
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What is the CVSS score of CVE-2022-24728?
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Dependency Blast Radius
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