How severe is CVE-2023-47102?

CVE-2023-47102 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-47102 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-47102?

CVE-2023-47102 affects Urbackup Urbackup Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-47102?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-47102 published?

CVE-2023-47102 was published on 2023-11-07 and last updated on 2026-06-17.

CVE-2023-47102

CVE-2023-47102 is a medium-severity vulnerability in Urbackup Urbackup Server with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-203.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Urbackup Urbackup Server
Published: 2023-11-07
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is 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.
How severe is CVE-2023-47102?: CVE-2023-47102 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-47102 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-47102?: CVE-2023-47102 affects Urbackup Urbackup Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-47102?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-47102 published?: CVE-2023-47102 was published on 2023-11-07 and last updated on 2026-06-17.

References

Affected products (1)

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

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