https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-04T03:50:43.882476+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-337117 EUVD-2026-337117 2026-10-04T03:50:43.885904+00:00 EUVD-2026-337117 https://cve.radiocsirt.org/vuln/fkie_cve-2024-21911 fkie_cve-2024-21911 2026-10-04T03:50:43.885936+00:00

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.

 https://cve.radiocsirt.org/vuln/ghsa-w7jx-j77m-wp65 GHSA-w7jx-j77m-wp65 — Cross-site scripting vulnerability in TinyMCE 2026-10-04T03:50:43.885967+00:00

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

### Impact A cross-site scripting (XSS) vulnerability was discovered in the URL sanitization 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 APIs. This impacts all users who are using TinyMCE 5.5.1 or lower.

### Patches This vulnerability has been patched in TinyMCE 5.6.0 by improved URL sanitization logic.

### Workarounds To work around this vulnerability, either: - Upgrade to TinyMCE 5.6.0 or higher - Manually sanitize `iframe`, `object` and `embed` URL attributes using a [TinyMCE node filter](https://www.tiny.cloud/docs/api/tinymce.html/tinymce.html.domparser/#addnodefilter). - Disable `iframe`, `object`, and `embed` elements in your content using the [invalid_elements](https://www.tiny.cloud/docs/configure/content-filtering/#invalid_elements) setting.

#### Example: Sanitizing using a node filter ```js editor.parser.addNodeFilter('iframe,object,embed', function(nodes) { nodes.forEach(function(node) { if (node.attributes) { node.attributes.forEach(function(attr) { var name = attr.name; var value = attr.value; // Sanitize the attribute value here or remove it entirely var sanitizedValue = ...; node.attr(name, santizedValue); }); } }); }); ```

#### Example: Using invalid_elements ```js invalid_elements: 'iframe,object,embed' ```

### Acknowledgements Tiny Technologies would like to th…

 https://cve.radiocsirt.org/vuln/gsd-2024-21911 gsd-2024-21911 2026-10-04T03:50:43.886013+00:00 gsd-2024-21911 https://cve.radiocsirt.org/vuln/ubuntu-cve-2024-21911 UBUNTU-CVE-2024-21911 2026-10-04T03:50:43.886027+00:00

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

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.