CVE-2021-37628

HIGH

Nextcloud Richdocuments < 3.8.4 - Authorization Bypass via File Drop Feature

Title source: llm
STIX 2.1

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.

References (3)

Core 3
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/nextcloud/richdocuments/pull/1664
Permissions Required, Third Party Advisory x_refsource_misc
https://hackerone.com/reports/1253403

Scores

CVSS v3 7.5
EPSS 0.0202
EPSS Percentile 78.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-639
Status published
Products (1)
nextcloud/richdocuments < 3.8.4
Published Sep 07, 2021
Tracked Since Feb 18, 2026