CVE-2026-45275

MEDIUM EPSS 27.7%
Published Jun 1, 20264w ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Jun 1, 2026 4w ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
27.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-285

Affected Products 1

VendorProductVersionRange
nextcloudapproval* <2.7.2

References 3

  • github.com https://github.com/nextcloud/approval/pull/392
    Issue TrackingPatch
  • github.com https://github.com/nextcloud/security-advisories/security/advisories/GHSA-v8q8-w6c3-3gv9
    MitigationVendor Advisory
  • hackerone.com https://hackerone.com/reports/3593780
    Permissions Required

Remediation

  • github.com https://github.com/nextcloud/approval/pull/392
    Issue TrackingPatch