Publish GHSA-w7jx-j77m-wp65

advisories/github-reviewed/2021/01/GHSA-w7jx-j77m-wp65/GHSA-w7jx-j77m-wp65.json

@@ -1,10 +1,10 @@
 {
   "schema_version": "1.4.0",
   "id": "GHSA-w7jx-j77m-wp65",
-  "modified": "2021-01-06T19:27:46Z",
+  "modified": "2024-01-03T22:31:57Z",
   "published": "2021-01-06T19:27:54Z",
   "aliases": [
-
+    "CVE-2024-21911"
   ],
   "summary": "Cross-site scripting vulnerability in TinyMCE",
   "details": "### Impact\nA 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.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 5.6.0 by improved URL sanitization logic.\n\n### Workarounds\nTo work around this vulnerability, either:\n- Upgrade to TinyMCE 5.6.0 or higher\n- 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).\n- Disable `iframe`, `object`, and `embed` elements in your content using the [invalid_elements](https://www.tiny.cloud/docs/configure/content-filtering/#invalid_elements) setting.\n\n#### Example: Sanitizing using a node filter\n```js\neditor.parser.addNodeFilter('iframe,object,embed', function(nodes) {\n  nodes.forEach(function(node) {\n    if (node.attributes) {\n      node.attributes.forEach(function(attr) {\n        var name = attr.name;\n        var value = attr.value;\n        // Sanitize the attribute value here or remove it entirely\n        var sanitizedValue = ...;\n        node.attr(name, santizedValue);\n      });\n    }\n  });\n});\n```\n\n#### Example: Using invalid_elements\n```js\ninvalid_elements: 'iframe,object,embed'\n```\n\n### Acknowledgements\nTiny Technologies would like to thank Aaron Bishop at SecurityMetrics for discovering this vulnerability.\n\n### References\nhttps://www.tiny.cloud/docs/release-notes/release-notes56/#securityfixes\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in the [TinyMCE repo](https://github.com/tinymce/tinymce/issues)\n* Email us at [infosec@tiny.cloud](mailto:infosec@tiny.cloud)",