Description
Papermark through 0.22.0 contains a cross-origin resource sharing (CORS) misconfiguration vulnerability that allows unauthenticated remote attackers to perform credentialed cross-origin requests by exploiting the TUS-based viewer upload endpoint reflecting arbitrary request Origins with Access-Control-Allow-Credentials set to true. Attackers can lure authenticated victims to malicious pages that silently issue credentialed cross-origin requests to upload arbitrary files into victim datarooms and read credentialed responses.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| papermark | papermark | ≤ 0.22.0 | — |
References
- Researcher Disclosure issue-tracking
- Findings Summary issue-tracking patch
- https://www.vulncheck.com/advisories/papermark-cors-misconfiguration-in-viewer-upload-endpoint third-party-advisory