Description
A missing authentication vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read arbitrary stored documents via the fileupload Parse cloud function. The function mints MASTER_KEY-signed file access tokens for any caller-supplied URL without performing any session check, defeating the only access control protecting stored contract files.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenSignLabs | opensignserver | ≤ 2.37.0 | — |
References
- OpenSign GitHub Repository third-party-advisory