TinyMCE (>= 8.5.1, < 8.9.3) - CraftedSignal Threat Feedhttps://feed.craftedsignal.io/products/tinymce--8.5.1--8.9.3/Trending threats, MITRE ATT&CK coverage, and detection metadata. Fed continuously.Hugoenhello@craftedsignal.iohello@craftedsignal.ioTue, 27 Oct 2026 23:58:28 +0000https://feed.craftedsignal.io/favicon-32x32.pngCraftedSignal Threat Feedhttps://feed.craftedsignal.io/3232https://feed.craftedsignal.io/favicon.svgTinyMCE: Stored cross-site scripting in media plugin (CVE-2026-116675)https://feed.craftedsignal.io/briefs/2026-10-tinymce-xss/Tue, 27 Oct 2026 23:58:28 +0000hello@craftedsignal.iohttps://feed.craftedsignal.io/briefs/2026-10-tinymce-xss/TinyMCE is vulnerable to stored Cross-Site Scripting (XSS) via the media plugin, allowing attackers to inject malicious scripts through the data-mce-object attribute before sanitization occurs.TinyMCE versions 8.5.1 up to 8.9.2 and 7.9.3 are vulnerable to a stored XSS vulnerability within the media plugin. An attacker can craft inputs using the 'data-mce-object' attribute that the editor fails to sanitize before execution, leading to potential script execution in the context of the user's session.

Impact

Successful exploitation results in stored Cross-Site Scripting. This allows attackers to execute arbitrary JavaScript in the browser of any user who views the affected content within the TinyMCE editor.

Recommendation

  • Upgrade TinyMCE to version 8.9.3 or higher.
  • Upgrade TinyMCE to version 7.9.4 or higher.
  • Audit existing content stored via the media plugin if the application is highly targeted.
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