CVE-2023-49105

CRITICAL EPSS 95.4%
Published Nov 21, 20232y ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Nov 21, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
95.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-287 Improper Authentication Authentication

Affected Products 1

VendorProductVersionRange
owncloudowncloud_server*≥10.6.0  –  <10.13.1

References 2

  • owncloud.com https://owncloud.com/security-advisories/webdav-api-authentication-bypass-using-pre-signed-urls/
    Vendor Advisory
  • owncloud.org https://owncloud.org/security
    Product

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.