{"items":[{"id":"NVI-00007886","kind":"vulnerability","title":"Cross-site scripting vulnerability in TinyMCE plugins","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-r8hm-w5f7-wj39","CVE-2024-21910"],"plain_summary":"OSV carries this publisher advisory for tinymce, tinymce/tinymce, TinyMCE, django-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 5.10.0 for tinymce. Confirm the publisher’s latest guidance.","source_ids":["sr-ec7944c1a3677216c51a51269317b76f"],"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 5.10.0 for tinymce/tinymce. Confirm the publisher’s latest guidance.","source_ids":["sr-ec7944c1a3677216c51a51269317b76f"],"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-ad539d5106103011f892339d8c9158da"],"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":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.956%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.61432. Missing scores are unknown.","source_id":"sr-ad539d5106103011f892339d8c9158da"}],"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-ec7944c1a3677216c51a51269317b76f","url":"https://github.com/advisories/GHSA-r8hm-w5f7-wj39","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-r8hm-w5f7-wj39","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.360Z"},{"id":"sr-ad539d5106103011f892339d8c9158da","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2024-21910","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ec7944c1a3677216c51a51269317b76f"],"technology":"tinymce","known_exclusions":[],"conditions_summary":"### Impact\nA cross-site scripting (XSS) vulnerability was discovered in the URL processing logic of the `image` and `link` plugins. The vulnerability allowed arbitrary JavaScript execution when updating an image or link using a specially crafted URL. This issue only impacted users while editing and the dangerous URLs were stripped in any content extracted from the editor. This impacts all users who are using TinyMCE 5.9.2 or lower.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 5.10.0 by improved sanitization logic when updating URLs in the relevant plugins.\n\n### Workarounds\nTo work around this vulnerability, either:\n- Upgrade to TinyMCE 5.10.0 or higher\n- Disable the `image` and `link` plugins\n\n### Acknowledgements\nTiny Technologies would like to thank Yakir6 for discovering this vulnerability.\n\n### References\nhttps://www.tiny.cloud/docs/release-notes/release-notes510/#securityfixes\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at infosec@tiny.cloud\n* Open an issue in the TinyMCE repo","public_affected_ranges":["SEMVER: introduced 0; fixed 5.10.0"]},{"certainty":"source_listed","source_ids":["sr-ec7944c1a3677216c51a51269317b76f"],"technology":"tinymce/tinymce","known_exclusions":[],"conditions_summary":"### Impact\nA cross-site scripting (XSS) vulnerability was discovered in the URL processing logic of the `image` and `link` plugins. The vulnerability allowed arbitrary JavaScript execution when updating an image or link using a specially crafted URL. This issue only impacted users while editing and the dangerous URLs were stripped in any content extracted from the editor. This impacts all users who are using TinyMCE 5.9.2 or lower.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 5.10.0 by improved sanitization logic when updating URLs in the relevant plugins.\n\n### Workarounds\nTo work around this vulnerability, either:\n- Upgrade to TinyMCE 5.10.0 or higher\n- Disable the `image` and `link` plugins\n\n### Acknowledgements\nTiny Technologies would like to thank Yakir6 for discovering this vulnerability.\n\n### References\nhttps://www.tiny.cloud/docs/release-notes/release-notes510/#securityfixes\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at infosec@tiny.cloud\n* Open an issue in the TinyMCE repo","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.10.0"]},{"certainty":"source_listed","source_ids":["sr-ec7944c1a3677216c51a51269317b76f"],"technology":"TinyMCE","known_exclusions":[],"conditions_summary":"### Impact\nA cross-site scripting (XSS) vulnerability was discovered in the URL processing logic of the `image` and `link` plugins. The vulnerability allowed arbitrary JavaScript execution when updating an image or link using a specially crafted URL. This issue only impacted users while editing and the dangerous URLs were stripped in any content extracted from the editor. This impacts all users who are using TinyMCE 5.9.2 or lower.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 5.10.0 by improved sanitization logic when updating URLs in the relevant plugins.\n\n### Workarounds\nTo work around this vulnerability, either:\n- Upgrade to TinyMCE 5.10.0 or higher\n- Disable the `image` and `link` plugins\n\n### Acknowledgements\nTiny Technologies would like to thank Yakir6 for discovering this vulnerability.\n\n### References\nhttps://www.tiny.cloud/docs/release-notes/release-notes510/#securityfixes\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at infosec@tiny.cloud\n* Open an issue in the TinyMCE repo","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.10.0"]},{"certainty":"source_listed","source_ids":["sr-ec7944c1a3677216c51a51269317b76f"],"technology":"django-tinymce","known_exclusions":[],"conditions_summary":"### Impact\nA cross-site scripting (XSS) vulnerability was discovered in the URL processing logic of the `image` and `link` plugins. The vulnerability allowed arbitrary JavaScript execution when updating an image or link using a specially crafted URL. This issue only impacted users while editing and the dangerous URLs were stripped in any content extracted from the editor. This impacts all users who are using TinyMCE 5.9.2 or lower.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 5.10.0 by improved sanitization logic when updating URLs in the relevant plugins.\n\n### Workarounds\nTo work around this vulnerability, either:\n- Upgrade to TinyMCE 5.10.0 or higher\n- Disable the `image` and `link` plugins\n\n### Acknowledgements\nTiny Technologies would like to thank Yakir6 for discovering this vulnerability.\n\n### References\nhttps://www.tiny.cloud/docs/release-notes/release-notes510/#securityfixes\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at infosec@tiny.cloud\n* Open an issue in the TinyMCE repo","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 3.4.0"]}],"null_published_at":"2026-11-05T03:52:54.767Z","source_updated_at":"2026-07-08T06:53:11.097Z","source_disclosed_at":"2021-11-02T15:42:52.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:42:41.360Z"},{"id":"NVI-00007886","kind":"vulnerability","title":"Cross-site scripting vulnerability in TinyMCE plugins","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-r8hm-w5f7-wj39","CVE-2024-21910"],"plain_summary":"OSV carries this publisher advisory for tinymce, tinymce/tinymce, TinyMCE, django-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 5.10.0 for tinymce. Confirm the publisher’s latest guidance.","source_ids":["sr-ec7944c1a3677216c51a51269317b76f"],"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 5.10.0 for tinymce/tinymce. Confirm the publisher’s latest guidance.","source_ids":["sr-ec7944c1a3677216c51a51269317b76f"],"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-ec7944c1a3677216c51a51269317b76f","url":"https://github.com/advisories/GHSA-r8hm-w5f7-wj39","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-r8hm-w5f7-wj39","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.360Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ec7944c1a3677216c51a51269317b76f"],"technology":"tinymce","known_exclusions":[],"conditions_summary":"### Impact\nA cross-site scripting (XSS) vulnerability was discovered in the URL processing logic of the `image` and `link` plugins. The vulnerability allowed arbitrary JavaScript execution when updating an image or link using a specially crafted URL. This issue only impacted users while editing and the dangerous URLs were stripped in any content extracted from the editor. This impacts all users who are using TinyMCE 5.9.2 or lower.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 5.10.0 by improved sanitization logic when updating URLs in the relevant plugins.\n\n### Workarounds\nTo work around this vulnerability, either:\n- Upgrade to TinyMCE 5.10.0 or higher\n- Disable the `image` and `link` plugins\n\n### Acknowledgements\nTiny Technologies would like to thank Yakir6 for discovering this vulnerability.\n\n### References\nhttps://www.tiny.cloud/docs/release-notes/release-notes510/#securityfixes\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at infosec@tiny.cloud\n* Open an issue in the TinyMCE repo","public_affected_ranges":["SEMVER: introduced 0; fixed 5.10.0"]},{"certainty":"source_listed","source_ids":["sr-ec7944c1a3677216c51a51269317b76f"],"technology":"tinymce/tinymce","known_exclusions":[],"conditions_summary":"### Impact\nA cross-site scripting (XSS) vulnerability was discovered in the URL processing logic of the `image` and `link` plugins. The vulnerability allowed arbitrary JavaScript execution when updating an image or link using a specially crafted URL. This issue only impacted users while editing and the dangerous URLs were stripped in any content extracted from the editor. This impacts all users who are using TinyMCE 5.9.2 or lower.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 5.10.0 by improved sanitization logic when updating URLs in the relevant plugins.\n\n### Workarounds\nTo work around this vulnerability, either:\n- Upgrade to TinyMCE 5.10.0 or higher\n- Disable the `image` and `link` plugins\n\n### Acknowledgements\nTiny Technologies would like to thank Yakir6 for discovering this vulnerability.\n\n### References\nhttps://www.tiny.cloud/docs/release-notes/release-notes510/#securityfixes\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at infosec@tiny.cloud\n* Open an issue in the TinyMCE repo","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.10.0"]},{"certainty":"source_listed","source_ids":["sr-ec7944c1a3677216c51a51269317b76f"],"technology":"TinyMCE","known_exclusions":[],"conditions_summary":"### Impact\nA cross-site scripting (XSS) vulnerability was discovered in the URL processing logic of the `image` and `link` plugins. The vulnerability allowed arbitrary JavaScript execution when updating an image or link using a specially crafted URL. This issue only impacted users while editing and the dangerous URLs were stripped in any content extracted from the editor. This impacts all users who are using TinyMCE 5.9.2 or lower.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 5.10.0 by improved sanitization logic when updating URLs in the relevant plugins.\n\n### Workarounds\nTo work around this vulnerability, either:\n- Upgrade to TinyMCE 5.10.0 or higher\n- Disable the `image` and `link` plugins\n\n### Acknowledgements\nTiny Technologies would like to thank Yakir6 for discovering this vulnerability.\n\n### References\nhttps://www.tiny.cloud/docs/release-notes/release-notes510/#securityfixes\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at infosec@tiny.cloud\n* Open an issue in the TinyMCE repo","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.10.0"]},{"certainty":"source_listed","source_ids":["sr-ec7944c1a3677216c51a51269317b76f"],"technology":"django-tinymce","known_exclusions":[],"conditions_summary":"### Impact\nA cross-site scripting (XSS) vulnerability was discovered in the URL processing logic of the `image` and `link` plugins. The vulnerability allowed arbitrary JavaScript execution when updating an image or link using a specially crafted URL. This issue only impacted users while editing and the dangerous URLs were stripped in any content extracted from the editor. This impacts all users who are using TinyMCE 5.9.2 or lower.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 5.10.0 by improved sanitization logic when updating URLs in the relevant plugins.\n\n### Workarounds\nTo work around this vulnerability, either:\n- Upgrade to TinyMCE 5.10.0 or higher\n- Disable the `image` and `link` plugins\n\n### Acknowledgements\nTiny Technologies would like to thank Yakir6 for discovering this vulnerability.\n\n### References\nhttps://www.tiny.cloud/docs/release-notes/release-notes510/#securityfixes\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at infosec@tiny.cloud\n* Open an issue in the TinyMCE repo","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 3.4.0"]}],"null_published_at":"2026-10-31T22:13:18.639Z","source_updated_at":"2026-07-08T06:53:11.097Z","source_disclosed_at":"2021-11-02T15:42:52.000Z","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":"2026-10-31T21:42:41.360Z"}],"next_cursor":null,"snapshot_revision":"42594"}