coldbraid

CVE-2023-49105 OwnCloud OwnCloud

An issue was discovered in ownCloud owncloud/core before 10.13.1. An attacker can access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured. This occurs because pre-signed…

CVSS
9.8 Critical
EPSS
43%
Percentile
99
Published
2023-11-21
Force
11 of 12
Public PoC
1

CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:N

CWE-287

On CISA’s exploited list

ownCloud Improper Authentication Vulnerability

Added
2026-08-27
Federal patch deadline
2026-08-30
Ransomware use
not known