CVE-2023-49105

CISA KEV
ACT NOW Priority: 0.00 BB Relevance: 9/100
Published: N/A Modified: N/A First seen: 2026-10-29 Status: pending_score

Description

ownCloud contains an improper authentication vulnerability that allows an attacker to access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured.

CISA Known Exploited Vulnerability

Vendor / Product ownCloud — ownCloud
Date Added 2026-08-27
Remediation Due 2026-08-30
https://owncloud.org/security ; https://owncloud.com/security-advisories/webdav-api-authentication-bypass-using-pre-signed-urls/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2023-49105

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
owncloud owncloud_server 10.6.0 – 10.13.1

Bug Bounty Relevance

9 / 100
✓ Known exploited (KEV)

CVSS Score

Unscored

EPSS — Exploitation Probability

43.19%
Raw Score 0.431900
Percentile 98.7%
Date 2026-10-28

Intelligence Sources

kev ref →