ownCloud core up to 10.13.0 improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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8.9$0-$5k0.00

Summaryinfo

A vulnerability was found in ownCloud core up to 10.13.0 and classified as critical. This issue affects some unknown processing. Such manipulation leads to improper authentication. This vulnerability is uniquely identified as CVE-2023-49105. The attack can be launched remotely. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in ownCloud core up to 10.13.0 (Cloud Software). It has been rated as critical. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was disclosed 11/22/2023. The advisory is available at owncloud.com. This vulnerability is handled as CVE-2023-49105 since 11/21/2023. Technical details are unknown but an exploit is available.

It is declared as attacked. This issue was added on 08/27/2026 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 08/30/2026:

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BO

Upgrading to version 10.13.1 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector (MITRE): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: core 10.13.1

Timelineinfo

11/21/2023 🔍
11/22/2023 +1 days 🔍
11/22/2023 +0 days 🔍
08/28/2026 +1010 days 🔍

Sourcesinfo

Advisory: owncloud.com
Status: Confirmed

CVE: CVE-2023-49105 (🔍)
GCVE (CVE): GCVE-0-2023-49105
GCVE (VulDB): GCVE-100-245942
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/22/2023 07:08
Updated: 08/28/2026 05:32
Changes: 11/22/2023 07:08 (50), 08/27/2026 21:07 (26), 08/28/2026 05:32 (12)
Complete: 🔍
Cache ID: 216::103

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