CVE-2023-47102

MEDIUMNVD 5.35.3—

5.3

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
EG Score: 5.3(medium)
EPSS: 49.0%
KEV: Not listed

Published

November 7, 2023

Last Modified

September 29, 2025

References (3)

cve@mitrehttps://nitipoom-jaroonchaipipat.github.io/security-research-portal/2023-47102
cve@mitrehttps://quantiano.github.io/cve-2023-47102/
af854a3a-2127-422b-91ae-364da2661108https://quantiano.github.io/cve-2023-47102/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-203Observable Discrepancy (Information Exposure via Side Channel)

Data Freshness Timeline

(refreshed 10× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 14:23 UTCEG score recompute
2026-05-24 14:23 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-47102?

CVE-2023-47102 is a medium vulnerability published on November 7, 2023. UrBackup Server 2.5.31 allows brute-force enumeration of user accounts because a failure message confirms that a username is not valid.

When was CVE-2023-47102 disclosed?

CVE-2023-47102 was first published in the National Vulnerability Database on November 7, 2023, with the most recent update on September 29, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-47102 actively exploited?

CVE-2023-47102 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 49.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-47102?

CVE-2023-47102 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2023-47102?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-47102, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-47102

📅 Published

🔄 Last Modified

🔗 References (3)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-47102?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (3)

Frequently asked(5)

Related CVEs(same CWE)