CVE-2026-63667
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk27th percentile - higher than 27% of all known CVEs
Summary
ApostropheCMS before 3.6.2 has a vulnerability in the import-export module where the attachment source path is constructed from attacker-controlled _id, name, and extension fields without ensuring the 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.
Risk Assessment
The risk includes reading sensitive files from the host filesystem and potential data exposure via a public URL.
Recommendation
It is recommended to upgrade to version 3.6.2 or later, which includes the fix.
Original NVD description (English source)
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.