Vulnerability Report

CVE-2021-39223

Title: Nextcloud Richdocuments Information Disclosure

Information Disclosure

Proof Of Concept

No public PoC currently indexed for CVE-2021-39223.

CWE Category CWE-200
Published Date Oct 25, 2021
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 4.8 CVSS v3.1
Exploit Probability (EPSS)
1.05%

Vulnerability Summary

CVE-2021-39223: 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.

Impacted Vendors

N
nextcloud 1

Reference Links

https://github.com/nextcloud/richdocuments/pull/1760 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-rjcc-4cgj-6v93 https://hackerone.com/reports/1253460 https://github.com/nextcloud/richdocuments/pull/1760 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-rjcc-4cgj-6v93 https://hackerone.com/reports/1253460
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
4.8
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.3
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-39223 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

Affected Stack

No specific products linked.