{"id":"UBUNTU-CVE-2026-47759","details":"TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.","modified":"2026-06-03T11:26:15Z","published":"2026-05-28T16:16:00Z","upstream":["CVE-2026-47759"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-47759"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-47759"},{"type":"REPORT","url":"https://github.com/tinymce/tinymce/security/advisories/GHSA-q742-qvgc-gc2f"},{"type":"REPORT","url":"https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview"},{"type":"REPORT","url":"https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview"}],"affected":[{"package":{"name":"tinymce","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/tinymce?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.8+dfsg0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"tinymce","binary_version":"3.4.8+dfsg0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47759.json"}},{"package":{"name":"tinymce","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/tinymce?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.8+dfsg0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"tinymce","binary_version":"3.4.8+dfsg0-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47759.json"}},{"package":{"name":"tinymce","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/tinymce?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.8+dfsg0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"tinymce","binary_version":"3.4.8+dfsg0-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47759.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}