{"cve":"CVE-2021-37628","nvd":{"published":"2021-09-07T21:15:08.730","modified":"2026-06-17T04:00:51.687","status":"Modified","description":"Nextcloud Richdocuments is an open source collaborative office suite. In affected versions the File Drop features (\"Upload Only\" public link shares in Nextcloud) can be bypassed using the Nextcloud Richdocuments app. An attacker was able to read arbitrary files in such a share. It is recommended that the Nextcloud Richdocuments is upgraded to 3.8.4 or 4.2.1. If upgrading is not possible then it is recommended to disable the Richdocuments application.","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-639"],"references":["https://github.com/nextcloud/richdocuments/pull/1664","https://github.com/nextcloud/security-advisories/security/advisories/GHSA-pxhh-954f-8w7w","https://hackerone.com/reports/1253403","https://github.com/nextcloud/richdocuments/pull/1664","https://github.com/nextcloud/security-advisories/security/advisories/GHSA-pxhh-954f-8w7w"],"products":["nextcloud:richdocuments"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2021-37628","score":0.0209,"percentile":0.81612,"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."]}