GHSA-m94c-37g6-cjhc

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    GHSA-m94c-37g6-cjhc

    Published: 23 Aug 2021Last Modified: 8 Jul 2026

    Summary: Fake objects feature vulnerability allowing to execute JavaScript code using malformed HTML.

    Details: ### Affected packages The vulnerability has been discovered in [Fake Objects](https://ckeditor.com/cke4/addon/fakeobjects) plugin. All plugins with [Fake Objects](https://ckeditor.com/cke4/addon/fakeobjects) plugin dependency are affected: * [Fake Objects](https://ckeditor.com/cke4/addon/fakeobjects) * [Link](https://ckeditor.com/cke4/addon/link) * [Flash](https://ckeditor.com/cke4/addon/flash) * [Iframe](https://ckeditor.com/cke4/addon/iframe) * [Forms](https://ckeditor.com/cke4/addon/forms) * [Page Break](https://ckeditor.com/cke4/addon/pagebreak) ### Impact A potential vulnerability has been discovered in CKEditor 4 [Fake Objects](https://ckeditor.com/cke4/addon/fakeobjects) package. The vulnerability allowed to inject malformed Fake Objects HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version < 4.16.2. ### Patches The problem has been recognized and patched. The fix will be available in version 4.16.2. ### For more information Email us at [email protected] if you have any questions or comments about this advisory. ### Acknowledgements The CKEditor 4 team would like to thank Mika Kulmala ([kulmik](https://github.com/kulmik)) for recognizing and reporting this vulnerability.

    References: https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-m94c-37g6-cjhc, https://nvd.nist.gov/vuln/detail/CVE-2021-37695, https://github.com/ckeditor/ckeditor4/commit/de3c001540715f9c3801aaa38a1917de46cfcf58, https://github.com/ckeditor/ckeditor4, https://lists.debian.org/debian-lts-announce/2021/11/msg00007.html, https://lists.fedoraproject.org/archives/list/[email protected]/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T, https://lists.fedoraproject.org/archives/list/[email protected]/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW, https://lists.fedoraproject.org/archives/list/[email protected]/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD, https://www.oracle.com/security-alerts/cpujan2022.html, https://www.oracle.com/security-alerts/cpuoct2021.html

    Affected packages

    Package

    Name: ckeditor4

    Purl: pkg:npm/ckeditor4

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -4.16.2

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-m94c-37g6-cjhc | CVE-DB