CVE-2023-48304

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 starting in version 22.0.0 and prior to versions 22.2.10.16, 23.0.12.11, 24.0.12.7, 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Enterprise Server, an attacker could enable and disable the birthday calendar for any user on the same server. Nextcloud Server 25.0.11, 26.0.6, and 27.1.0 and Nextcloud Enterprise Server 22.2.10.16, 23.0.12.11, 24.0.12.7, 25.0.11, 26.0.6, and 27.1.0 contain patches for this issue. No known workarounds are available.

• CWE-639

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8jwv-c8c8-9fr3Vendor Advisory
• https://github.com/nextcloud/server/pull/40292Issue Tracking, Patch
• https://hackerone.com/reports/2112973Exploit, Third Party Advisory
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8jwv-c8c8-9fr3Vendor Advisory
• https://github.com/nextcloud/server/pull/40292Issue Tracking, Patch
• https://hackerone.com/reports/2112973Exploit, Third Party Advisory

Published

Nov 21, 2023

Last Modified

Jun 17, 2026

Status

Modified

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
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