{"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","slug":"CVE-2025-66515","body":"## Overview\n\nThe 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.\n\n## Affected\n\n- `approval >= 1.0.0, < 1.3.1`\n- `approval >= 2.0.0, < 2.5.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `approval 2.5.0`","depth":"sunlit","depthScore":15,"depthScoreParts":{"impact":14.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}