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CVE-2021-39223 Details

Description

Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud Richdocuments application prior to versions 3.8.6 and 4.2.3 returned verbatim exception messages to the user. This could result in a full path disclosure on shared files. (e.g. an attacker could see that the file `shared.txt` is located within `/files/$username/Myfolder/Mysubfolder/shared.txt`). It is recommended that the Richdocuments application is upgraded to 3.8.6 or 4.2.3. As a workaround, disable the Richdocuments application in the app settings.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CNA: [email protected]CVSS-B:4.8 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/nextcloud/richdocuments/pull/1760	CVE	PatchThird Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-rjcc-4cgj-6v93	CVE	Third Party Advisory
https://hackerone.com/reports/1253460	CVE	Permissions RequiredThird Party Advisory
https://github.com/nextcloud/richdocuments/pull/1760	[email protected]	PatchThird Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-rjcc-4cgj-6v93	[email protected]	Third Party Advisory
https://hackerone.com/reports/1253460	[email protected]	Permissions RequiredThird Party Advisory

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information to Classify Weakness	[email protected]
CWE-200	Exposure of Sensitive Information to an Unauthorized Actor	[email protected]

Affected Products

Product	Versions
nextcloud richdocuments	< 3.8.6 >= 4.0.0, < 4.2.3
CPE cpe:2.3:a:nextcloud:richdocuments:::::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 29, 2021	Initial Analysis	[email protected]