CVE-2023-39959
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform.
Does this matter?
Lower severity and a low EPSS score (0.61%). Track it; it rarely justifies an emergency change on its own.
Description
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.9, 26.0.4, and 27.0.1, unauthenticated users could send a DAV request which reveals whether a calendar or an address book with the given identifier exists for the victim. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.61% probability · 47th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-284
- Affected
- nextcloud/nextcloud server
- Source
- security-advisories@github.com
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-g97r-8ffm-hfpjVendor Advisory
- https://github.com/nextcloud/server/pull/38747Patch
- https://hackerone.com/reports/1832126Permissions Required
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-g97r-8ffm-hfpjVendor Advisory
- https://github.com/nextcloud/server/pull/38747Patch
- https://hackerone.com/reports/1832126Permissions Required
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.