Vulnerability · Published Nov 21, 2023 · Assigned by GitHub_M

CVE-2023-48303Nextcloud Server admins can change authentication details of user configured external storage

Low 2.4

In plain English

A low-severity improper access control in security-advisories from nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).

Severity (CVSS 3.1)2.4Low

Exploit odds (30 days)0.7%top 47.8% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Server and Nextcloud Enterprise Server, admins can change authentication details of user configured external storage. Nextcloud Server and Nextcloud Enterprise Server versions 25.0.11, 26.0.6, and 27.1.0 contain a patch for this issue. No known workarounds are available.

Affected products (as reported)

Vendor	Product	Versions
nextcloud	security-advisories	>= 25.0.0, < 25.0.11>= 26.0.0, < 26.0.6>= 27.0.0, < 27.1.0

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2448-44rp-c7hh x_refsource_CONFIRM
https://github.com/nextcloud/server/pull/39895 x_refsource_MISC
https://hackerone.com/reports/2107934 x_refsource_MISC