Description (CNA)
The Approval app's approve/reject endpoint is meant to require the file's current etag as a freshness check, preventing an approver from approving or rejecting a file whose contents changed after they reviewed it. The backend only enforced this check when the etag parameter was present and non-empty in the request. An attacker able to intercept and modify the approval request could omit the etag field entirely, bypassing the freshness check and approving or rejecting a file version they never reviewed.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Nextcloud / Approval | affected 1.0.0 through 3.0.0 |
CWE
CWE-840
References
ADP enrichment
No English description supplied.
No references supplied.