{"id":"CVE-2026-63667","aliases":["GHSA-79qf-vqgc-7xx3"],"url":"https://o3.security/vulnerability/CVE-2026-63667","summary":"ApostropheCMS: Arbitrary file read via import-export attachment-name path traversal","details":"ApostropheCMS is an open-source Node.js content management system. Prior to 3.6.2, the import-export module in packages/import-export/lib/formats/gzip.js constructs an attachment source path from the attacker-controlled _id, name, and extension fields in aposAttachments.json without ensuring that the resolved path remains under the extracted attachments directory, allowing an authenticated contributor to import a crafted archive, read a host file with an allowed extension, and publish the copied file at an unauthenticated uploads URL. This issue is fixed in version 3.6.2.","published":"2026-08-17T19:56:07.436Z","modified":"2026-08-19T03:48:34.916723260Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"@apostrophecms/import-export","fixedVersion":"3.6.2"}],"fix":{"url":"https://github.com/apostrophecms/apostrophe/commit/87cccf44a23d09420875ca8a3765eb3db843836a","label":"apostrophecms/apostrophe@87cccf4"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63667.json"},{"type":"ADVISORY","url":"https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-79qf-vqgc-7xx3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63667"},{"type":"FIX","url":"https://github.com/apostrophecms/apostrophe/commit/87cccf44a23d09420875ca8a3765eb3db843836a"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-19T03:48:34.916723260Z"}}