---
id: CVE-2025-66515
title: >-
  The Nextcloud Approval app allows approval or disapproval of files in the
  sidebar
summary: >-
  The Nextcloud Approval app allows approval or disapproval of files in the
  sidebar. Prior to 1.3.1 and 2.5.0, an authenticated user listed as a requester
  in a workflow can set another user’s file into the “pending approval” without
  access…
severity: low
cvss: 2.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-287
vendor: nextcloud
product: approval
affected:
  - 'approval >= 1.0.0, < 1.3.1'
  - 'approval >= 2.0.0, < 2.5.0'
patched:
  - approval 2.5.0
published: '2025-12-05'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T21:10:00.327'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-66515'
references:
  - url: >-
      https://github.com/nextcloud/approval/commit/e30b56b7832255311ac800b7875f44866e88fff4
    label: security-advisories@github.com
  - url: 'https://github.com/nextcloud/approval/pull/334'
    label: security-advisories@github.com
  - url: >-
      https://github.com/nextcloud/security-advisories/security/advisories/GHSA-q26g-fmjq-x5g5
    label: security-advisories@github.com
  - url: 'https://hackerone.com/reports/3338748'
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00312
epssPercentile: 0.2396
ingestedAt: '2026-10-27T18:12:09.278Z'
---

## Overview

The Nextcloud Approval app allows approval or disapproval of files in the sidebar. Prior to 1.3.1 and 2.5.0, an authenticated user listed as a requester in a workflow can set another user’s file into the “pending approval” without access to the file by using the numeric file id. This vulnerability is fixed in 1.3.1 and 2.5.0.

## Affected

- `approval >= 1.0.0, < 1.3.1`
- `approval >= 2.0.0, < 2.5.0`

## Remediation

Upgrade past the affected range:

- `approval 2.5.0`