{"cve":"CVE-2023-25821","nvd":{"published":"2023-02-25T00:15:11.093","modified":"2026-06-17T05:42:03.577","status":"Modified","description":"Nextcloud is an Open Source private cloud software. Versions 24.0.4 and above, prior to 24.0.7, and 25.0.0 and above, prior to 25.0.1, contain Improper Access Control. Secure view for internal shares can be circumvented if reshare permissions are also given. This issue is patched in versions 24.0.7 and 25.0.1. No workaround  is available.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-284"],"references":["https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7w6h-5qgw-4j94","https://github.com/nextcloud/server/pull/34502","https://hackerone.com/reports/1724016","https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7w6h-5qgw-4j94","https://github.com/nextcloud/server/pull/34502"],"products":["nextcloud:nextcloud_server"],"source":"nvd","synced_at":"2026-10-19T21:37:41.955480748+00:00"},"epss":{"cve":"CVE-2023-25821","score":0.00946,"percentile":0.61143,"date":"2026-10-31"},"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."]}