{"items":[{"id":"NVI-00004021","kind":"vulnerability","title":"Cross-site scripting vulnerability in TinyMCE","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-w7jx-j77m-wp65","CVE-2024-21911"],"plain_summary":"OSV carries this publisher advisory for tinymce, TinyMCE, tinymce/tinymce. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 5.6.0 for tinymce. Confirm the publisher’s latest guidance.","source_ids":["sr-5484851978ac6832cc3463d66c9259df"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.6.0 for tinymce/tinymce. Confirm the publisher’s latest guidance.","source_ids":["sr-5484851978ac6832cc3463d66c9259df"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-9c386326a01bd4c570bdec5d72665ffa"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-14T23:17:14.637Z","value":"6.1 MEDIUM (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-9c386326a01bd4c570bdec5d72665ffa"},{"kind":"CVSS","as_of":"2026-07-14T23:17:14.637Z","value":"6.1 MEDIUM (3.1)","meaning":"134c704f-9b21-4f2e-91b3-4a467353bcc0 severity; no combined Null risk score.","source_id":"sr-9c386326a01bd4c570bdec5d72665ffa"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5484851978ac6832cc3463d66c9259df","url":"https://github.com/advisories/GHSA-w7jx-j77m-wp65","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-w7jx-j77m-wp65","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.384Z"},{"id":"sr-9c386326a01bd4c570bdec5d72665ffa","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-21911","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2024-21911","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T00:59:14.650Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5484851978ac6832cc3463d66c9259df"],"technology":"tinymce","known_exclusions":[],"conditions_summary":"### 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.\n- Disable `iframe`, `object`, and `embed` elements in your content using the 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        // Sanit","public_affected_ranges":["SEMVER: introduced 0; fixed 5.6.0"]},{"certainty":"source_listed","source_ids":["sr-5484851978ac6832cc3463d66c9259df"],"technology":"TinyMCE","known_exclusions":[],"conditions_summary":"### 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.\n- Disable `iframe`, `object`, and `embed` elements in your content using the 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        // Sanit","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.6.0"]},{"certainty":"source_listed","source_ids":["sr-5484851978ac6832cc3463d66c9259df"],"technology":"tinymce/tinymce","known_exclusions":[],"conditions_summary":"### 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.\n- Disable `iframe`, `object`, and `embed` elements in your content using the 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        // Sanit","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.6.0"]}],"null_published_at":"2026-11-06T15:18:11.511Z","source_updated_at":"2026-07-08T06:53:10.736Z","source_disclosed_at":"2021-01-06T19:27:54.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:41.384Z"},{"id":"NVI-00004021","kind":"vulnerability","title":"Cross-site scripting vulnerability in TinyMCE","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-w7jx-j77m-wp65","CVE-2024-21911"],"plain_summary":"OSV carries this publisher advisory for tinymce, TinyMCE, tinymce/tinymce. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 5.6.0 for tinymce. Confirm the publisher’s latest guidance.","source_ids":["sr-5484851978ac6832cc3463d66c9259df"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.6.0 for tinymce/tinymce. Confirm the publisher’s latest guidance.","source_ids":["sr-5484851978ac6832cc3463d66c9259df"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5484851978ac6832cc3463d66c9259df","url":"https://github.com/advisories/GHSA-w7jx-j77m-wp65","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-w7jx-j77m-wp65","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.384Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5484851978ac6832cc3463d66c9259df"],"technology":"tinymce","known_exclusions":[],"conditions_summary":"### 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.\n- Disable `iframe`, `object`, and `embed` elements in your content using the 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        // Sanit","public_affected_ranges":["SEMVER: introduced 0; fixed 5.6.0"]},{"certainty":"source_listed","source_ids":["sr-5484851978ac6832cc3463d66c9259df"],"technology":"TinyMCE","known_exclusions":[],"conditions_summary":"### 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.\n- Disable `iframe`, `object`, and `embed` elements in your content using the 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        // Sanit","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.6.0"]},{"certainty":"source_listed","source_ids":["sr-5484851978ac6832cc3463d66c9259df"],"technology":"tinymce/tinymce","known_exclusions":[],"conditions_summary":"### 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.\n- Disable `iframe`, `object`, and `embed` elements in your content using the 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        // Sanit","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.6.0"]}],"null_published_at":"2026-10-31T22:12:52.612Z","source_updated_at":"2026-07-08T06:53:10.736Z","source_disclosed_at":"2021-01-06T19:27:54.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:42:41.384Z"}],"next_cursor":null,"snapshot_revision":"39771"}