CVE-2025-66515
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-05

Last updated on: 2025-12-09

Assigner: GitHub, Inc.

Description
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.
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Meta Information
Published
2025-12-05
Last Modified
2025-12-09
Generated
2026-06-16
AI Q&A
2025-12-05
EPSS Evaluated
2026-06-14
NVD
CVE-2025-66515
EUVD
EUVD-2025-201457
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
nextcloud approval From 1.0.0 (inc) to 1.3.1 (exc)
nextcloud approval From 2.0.0 (inc) to 2.5.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-287 When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
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Executive Summary

This vulnerability in the Nextcloud Approval app allows an authenticated user who is a requester in a workflow to set another user's file into the 'pending approval' state without having access to that file. This is done by using the numeric file ID. The issue exists in versions prior to 1.3.1 and 2.5.0 and has been fixed in those versions.

Impact Analysis

The vulnerability could allow an authenticated user to manipulate the approval status of files they do not have access to, potentially disrupting workflow processes or causing confusion about the approval state of files. However, it does not allow access to the file contents or compromise confidentiality.

Mitigation Strategies

To mitigate this vulnerability, update the Nextcloud Approval app to version 1.3.1 or later, or 2.5.0 or later, as these versions contain the fix for the issue.

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