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Vulnerability details: VCID-3fw4-4nwa-nkaa
Vulnerability ID VCID-3fw4-4nwa-nkaa
Aliases CVE-2024-24816
GHSA-mw2c-vx6j-mg76
Summary CKEditor4 Cross-site Scripting vulnerability in samples with enabled the preview feature ### Affected packages The vulnerability has been discovered in the samples that use the [preview](https://ckeditor.com/cke4/addon/preview) feature: * `samples/old/**/*.html` * `plugins/[plugin name]/samples/**/*.html` All integrators that use these samples in the production code can be affected. ### Impact A potential vulnerability has been discovered in one of CKEditor's 4 samples that are shipped with production code. The vulnerability allowed to execute JavaScript code by abusing the misconfigured [preview feature](https://ckeditor.com/cke4/addon/preview). It affects all users using the CKEditor 4 at version < 4.24.0-lts with affected samples used in a production environment. ### Patches The problem has been recognized and patched. The fix will be available in version 4.24.0-lts. ### For more information Email us at [security@cksource.com](mailto:security@cksource.com) if you have any questions or comments about this advisory. ### Acknowledgements The CKEditor 4 team would like to thank [Marcin Wyczechowski](https://www.linkedin.com/in/marcin-wyczechowski-0a823795/) & [Michał Majchrowicz](https://www.linkedin.com/in/micha%C5%82-majchrowicz-mwsc/) [AFINE Team](https://afine.com/) for recognizing and reporting this vulnerability.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.21584 https://api.first.org/data/v1/epss?cve=CVE-2024-24816
cvssv3.1 6.1 https://ckeditor.com/cke4/addon/preview
generic_textual MODERATE https://ckeditor.com/cke4/addon/preview
ssvc Track https://ckeditor.com/cke4/addon/preview
cvssv3.1 6.1 https://github.com/ckeditor/ckeditor4
generic_textual MODERATE https://github.com/ckeditor/ckeditor4
cvssv3.1 6.1 https://github.com/ckeditor/ckeditor4/commit/8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb
generic_textual MODERATE https://github.com/ckeditor/ckeditor4/commit/8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb
ssvc Track https://github.com/ckeditor/ckeditor4/commit/8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb
cvssv3.1 6.1 https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-mw2c-vx6j-mg76
generic_textual MODERATE https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-mw2c-vx6j-mg76
ssvc Track https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-mw2c-vx6j-mg76
cvssv3.1 6.1 https://nvd.nist.gov/vuln/detail/CVE-2024-24816
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2024-24816
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2024-24816
https://ckeditor.com/cke4/addon/preview
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-24816
https://github.com/ckeditor/ckeditor4
https://github.com/ckeditor/ckeditor4/commit/8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb
https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-mw2c-vx6j-mg76
https://nvd.nist.gov/vuln/detail/CVE-2024-24816
1063536 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063536
cpe:2.3:a:ckeditor:ckeditor:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:ckeditor:ckeditor:*:*:*:*:*:*:*:*
GHSA-mw2c-vx6j-mg76 https://github.com/advisories/GHSA-mw2c-vx6j-mg76
USN-7258-1 https://usn.ubuntu.com/7258-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://ckeditor.com/cke4/addon/preview
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-21T20:41:03Z/ Found at https://ckeditor.com/cke4/addon/preview
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/ckeditor/ckeditor4
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/ckeditor/ckeditor4/commit/8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-21T20:41:03Z/ Found at https://github.com/ckeditor/ckeditor4/commit/8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-mw2c-vx6j-mg76
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-21T20:41:03Z/ Found at https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-mw2c-vx6j-mg76
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2024-24816
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.95424
EPSS Score 0.21584
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:09:59.021626+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/02/GHSA-mw2c-vx6j-mg76/GHSA-mw2c-vx6j-mg76.json 36.1.3