How severe is CVE-2023-6266?

CVE-2023-6266 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-6266 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6266?

CVE-2023-6266 affects Backupbliss Backup Migration. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6266?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-6266 have an EU (EUVD) identifier?

Yes. CVE-2023-6266 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58511.

When was CVE-2023-6266 published?

CVE-2023-6266 was published on 2024-01-11 and last updated on 2026-06-17.

CVE-2023-6266

CVE-2023-6266 is a high-severity vulnerability in Backupbliss Backup Migration with a CVSS 3.x base score of 7.5. 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-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-58511
Weakness: CWE-200
Affected product: Backupbliss Backup Migration
Published: 2024-01-11
Last modified: 2026-06-17

Description

The Backup Migration plugin for WordPress is vulnerable to unauthorized access of data due to insufficient path and file validation on the BMI_BACKUP case of the handle_downloading function in all versions up to, and including, 1.3.6. This makes it possible for unauthenticated attackers to download back-up files which can contain sensitive information such as user passwords, PII, database credentials, and much more.

Frequently asked questions

What is CVE-2023-6266?: The Backup Migration plugin for WordPress is vulnerable to unauthorized access of data due to insufficient path and file validation on the BMI_BACKUP case of the handle_downloading function in all versions up to, and including, 1.3.6. This makes it possible for unauthenticated attackers to download back-up files which can contain sensitive information such as user passwords, PII, database credentials, and much more.
How severe is CVE-2023-6266?: CVE-2023-6266 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-6266 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6266?: CVE-2023-6266 affects Backupbliss Backup Migration. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6266?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-6266 have an EU (EUVD) identifier?: Yes. CVE-2023-6266 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58511.
When was CVE-2023-6266 published?: CVE-2023-6266 was published on 2024-01-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:backupbliss:backup_migration:*:*:*:*:*:wordpress:*:*

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