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    CVE-2024-21911

    TinyMCE versions before 5.6.0 are affected by a stored cross-site scripting vulnerability. An unauthenticated and remote attacker could insert crafted HTML into the editor resulting in arbitrary JavaScript execution in another user's browser.

    Published:Jan 3, 2024
    Last Modified:Nov 28, 2025
    EPS:Jan 3, 2024
    EPSS Score:0.01596
    CVSS Score:6.1

    Affected Products

    Vendor
    Tiny
    Product
    Tinymce

    Exploits

    https://github.com/advisories/GHSA-w7jx-j77m-wp65https://github.com/tinymce/tinymce/security/advisories/GHSA-w7jx-j77m-wp65https://github.com/advisories/GHSA-w7jx-j77m-wp65https://github.com/tinymce/tinymce/security/advisories/GHSA-w7jx-j77m-wp65

    Related CVEs

    CVE-2026-47762 (CVSS 8.7) — TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerabi…
    CVE-2026-47761 (CVSS 8.7) — TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerabi…
    CVE-2026-47759 (CVSS 8.7) — TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerabi…
    CVE-2026-47760 (CVSS 8.7) — TinyMCE is an open source rich text editor. From 6.8.0 to before 7.1.0, TinyMCE contains an XSS vulnerability …
    CVE-2024-29881 (CVSS 4.3) — TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in Tiny…
    CVE-2024-29203 (CVSS 4.3) — TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in TinyM…
    CVE-2024-21910 (CVSS 6.1) — TinyMCE versions before 5.10.0 are affected by a cross-site scripting vulnerability. A remote and unauthentica…
    CVE-2024-21908 (CVSS 6.1) — TinyMCE versions before 5.9.0 are affected by a stored cross-site scripting vulnerability. An unauthenticated …
    CVE-2023-48219 (CVSS 6.1) — TinyMCE is an open source rich text editor. A mutation cross-site scripting (mXSS) vulnerability was discovere…
    CVE-2023-45818 (CVSS 6.1) — TinyMCE is an open source rich text editor. A mutation cross-site scripting (mXSS) vulnerability was discovere…

    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