CVE-2026-45275

6.5 MEDIUM
Published: June 01, 2026 Modified: June 03, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/nextcloud/approval/pull/392
Source: security-advisories@github.com
Issue Tracking Patch
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-v8q8-w6c3-3gv9
Source: security-advisories@github.com
Mitigation Vendor Advisory
https://hackerone.com/reports/3593780
Source: security-advisories@github.com
Permissions Required

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.5 / 10.0
EPSS (Exploit Probability)
0.4%
28th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

nextcloud