https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-04T12:49:26.767839+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-337114 EUVD-2026-337114 2026-10-04T12:49:26.771646+00:00 EUVD-2026-337114 https://cve.radiocsirt.org/vuln/fkie_cve-2024-21908 fkie_cve-2024-21908 2026-10-04T12:49:26.771683+00:00

TinyMCE versions before 5.9.0 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.

 https://cve.radiocsirt.org/vuln/ghsa-5h9g-x5rv-25wg GHSA-5h9g-x5rv-25wg — Cross-site scripting vulnerability in TinyMCE 2026-10-04T12:49:26.771727+00:00

Affected: npm: tinymce, NuGet: TinyMCE, Packagist: tinymce/tinymce

### Impact A cross-site scripting (XSS) vulnerability was discovered in the schema validation logic of the core parser. The vulnerability allowed arbitrary JavaScript execution when inserting a specially crafted piece of content into the editor using the clipboard or editor APIs. This malicious content could then end up in content published outside the editor, if no server-side sanitization was performed. This impacts all users who are using TinyMCE 5.8.2 or lower.

### Patches This vulnerability has been patched in TinyMCE 5.9.0 by ensuring schema validation was still performed after unwrapping invalid elements.

### Workarounds To work around this vulnerability, either: - Upgrade to TinyMCE 5.9.0 or higher - Manually sanitize the content using the `BeforeSetContent` event (see below)

#### Example: Manually sanitize content ```js editor.on('BeforeSetContent', function(e) { var sanitizedContent = ...; // Manually sanitize content here e.content = sanitizedContent; }); ```

### Acknowledgements Tiny Technologies would like to thank William Bowling for discovering this vulnerability.

### References https://www.tiny.cloud/docs/release-notes/release-notes59/#securityfixes

### For more information If you have any questions or comments about this advisory: * Email us at [infosec@tiny.cloud](mailto:infosec@tiny.cloud) * Open an issue in the [TinyMCE repo](https://github.com/tinymce/tinymce/issues)

 https://cve.radiocsirt.org/vuln/gsd-2024-21908 gsd-2024-21908 2026-10-04T12:49:26.771803+00:00 gsd-2024-21908 https://cve.radiocsirt.org/vuln/ubuntu-cve-2024-21908 UBUNTU-CVE-2024-21908 2026-10-04T12:49:26.771823+00:00

Affected: Ubuntu:16.04:LTS: tinymce, Ubuntu:18.04:LTS: tinymce, Ubuntu:20.04:LTS: tinymce

TinyMCE versions before 5.9.0 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.