CVE-2021-39223
4.8
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| nextcloud | security-advisories | < 3.8.6, | affected |
| nextcloud | security-advisories | >= 4.0.0, < 4.2.3 | affected |
Weaknesses
- CWE-200: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
ADP Enrichment
CVE Program Container
Additional References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-rjcc-4cgj-6v93
- https://github.com/nextcloud/richdocuments/pull/1760
- https://hackerone.com/reports/1253460
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-rjcc-4cgj-6v93
- https://github.com/nextcloud/richdocuments/pull/1760
- https://hackerone.com/reports/1253460
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