Papermark Directory Traversal Vulnerability Allowing Arbitrary File Retrieval from S3 via CloudFront
Vulnerability
A directory traversal vulnerability exists in Papermark versions through 0.20.0, allowing authenticated attackers to access arbitrary files from an S3 bucket. This is achieved through the CloudFront distribution using the 'POST /api/file/s3/get-presigned-get-url-proxy' API.
Impact
Exploitation of this vulnerability allows access to files outside of the intended directory for the user's team.
Added: Sep 22, 2025, 4:38 PM
Updated: Sep 23, 2025, 12:24 AM
Vulnerability Rating
Custom Algorithm
spread
0.0impact
0.8exploitability
5.2remediation
0.0relevance
0.6threat
0.0urgency
2.9incentive
1.7Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.