{"cve":"CVE-2025-66515","nvd":{"published":"2025-12-05T18:15:57.623","modified":"2026-10-15T21:10:00.327","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N","score":2.7},"cwes":["CWE-287"],"references":["https://github.com/nextcloud/approval/commit/e30b56b7832255311ac800b7875f44866e88fff4","https://github.com/nextcloud/approval/pull/334","https://github.com/nextcloud/security-advisories/security/advisories/GHSA-q26g-fmjq-x5g5","https://hackerone.com/reports/3338748"],"products":["nextcloud:approval"],"source":"nvd","synced_at":"2026-10-19T22:16:40.427100871+00:00"},"epss":{"cve":"CVE-2025-66515","score":0.00312,"percentile":0.23879,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}