Is CVE-2023-49105 actively exploited?

No active exploitation of CVE-2023-49105 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-49105 be exploited remotely?

Yes. CVE-2023-49105 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-49105?

CVE-2023-49105 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-49105

CRITICAL

CVE-2023-49105

CWE-287Published: November 21, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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 URLs can be accepted even when no signing-key is configured for the owner of the files. The earliest affected version is 10.6.0.

NVD Source

Technical Analysis

CVE-2023-49105 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.