Description
Nextcloud is an open source content collaboration platform. Prior to version 2.7.2, a privilege escalation vulnerability exists in the Approval app that allows a user without sharing permissions to force the system to share a file with approvers. This results in an authorization bypass and privilege escalation, allowing unauthorized distribution of restricted files. This issue has been patched in version 2.7.2.
Affected products
nextcloud: approval
References3
- github.com/nextcloud/security-advisories/security/advisories/GH… MitigationVendor Advisory
- github.com/nextcloud/approval/pull/392 Issue TrackingPatch
- hackerone.com/reports/3593780 Permissions Required
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 0% percentile: 30 · as of 15 November 2026
- CWE
- CWE-285
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