CVE-2023-47102

UrBackup Server 2.5.31 allows brute-force enumeration of user accounts because a failure message confirms that a username is not valid.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://nitipoom-jaroonchaipipat.github.io/security-research-portal/2023-47102
https://quantiano.github.io/cve-2023-47102/	Exploit Third Party Advisory
https://quantiano.github.io/cve-2023-47102/	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:urbackup:urbackup_server:2.5.31:*:*:*:*:*:*:*

History

29 Sep 2025, 14:16

Type	Values Removed	Values Added
References		() https://nitipoom-jaroonchaipipat.github.io/security-research-portal/2023-47102 -

21 Nov 2024, 08:29

Type	Values Removed	Values Added
References	~~() https://quantiano.github.io/cve-2023-47102/ - Exploit, Third Party Advisory~~	() https://quantiano.github.io/cve-2023-47102/ - Exploit, Third Party Advisory

13 Nov 2023, 19:38

Type	Values Removed	Values Added
References	~~() https://quantiano.github.io/cve-2023-47102/ -~~	() https://quantiano.github.io/cve-2023-47102/ - Exploit, Third Party Advisory
CPE		cpe:2.3:a:urbackup:urbackup_server:2.5.31:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3
CWE		CWE-203
First Time		Urbackup Urbackup urbackup Server

07 Nov 2023, 12:14

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-11-07 06:15

Updated : 2025-09-29 14:16

NVD link : CVE-2023-47102

Mitre link : CVE-2023-47102

CVE.ORG link : CVE-2023-47102

JSON object : View

Products Affected

urbackup

urbackup_server

CWE

CWE-203

Observable Discrepancy

{"id": "CVE-2023-47102", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2023-11-07T06:15:12.020", "references": [{"url": "https://nitipoom-jaroonchaipipat.github.io/security-research-portal/2023-47102", "source": "cve@mitre.org"}, {"url": "https://quantiano.github.io/cve-2023-47102/", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://quantiano.github.io/cve-2023-47102/", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-203"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-203"}]}], "descriptions": [{"lang": "en", "value": "UrBackup Server 2.5.31 allows brute-force enumeration of user accounts because a failure message confirms that a username is not valid."}, {"lang": "es", "value": "UrBackup Server 2.5.31 permite la enumeraci\u00f3n de cuentas de usuario por fuerza bruta porque un mensaje de error confirma que un nombre de usuario no es v\u00e1lido."}], "lastModified": "2025-09-29T14:16:41.143", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:urbackup:urbackup_server:2.5.31:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EF867D98-B68C-416E-8C97-5138B9942143"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}