CVE-2023-6266 (GCVE-0-2023-6266)

Vulnerability from cvelistv5 – Published: 2024-01-11 08:32 – Updated: 2026-04-08 16:34
VLAI Shadowserver Previdian
Title
Backup Migration <= 1.3.6 - Unauthenticated Arbitrary Backup Download to Sensitive Information Exposure
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-11 20:00 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
Wordfence CNA under the mitre root
CNA scorecard C 65/100 over 2375 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
inisev BackupBliss – Backup & Migration with Free Cloud Storage Affected: 0 , ≤ 1.3.6 (semver)
guessed Create a notification for this product.
Credits
Rafshanzani Suhada
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 66eb5610-e5cd-4679-b918-8dc27dd25083

Vulnerability ID: CVE-2023-6266

Status: Confirmed

Status Updated: 2026-11-02 00:00 UTC

Exploited: Yes

Characteristics
Severity: 75.0
Timestamps
First Seen: 2026-05-01
Asserted: 2026-05-01
Last Seen: 2026-11-02
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Backup Migration / Backup Migration WordPress Plugin | Class: cms | Severity: High (CVSS 7.5) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-11-02: 2
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class cms
7D Avg 0
Vendor Backup Migration
30D Avg 0
90D Avg 0
Product Backup Migration WordPress Plugin
Cisa Kev no
Connections 2
Observation Date 2026-11-02
Vulnerability Class CVSS
Vulnerability Score 7.5
Vulnerability Severity High
References
Created: 2026-07-01 05:54 UTC | Updated: 2026-11-04 01:02 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 1594d092-8148-4512-86aa-d2447800a6ef

Vulnerability ID: CVE-2023-6266

Status: Confirmed

Status Updated: 2024-01-11 08:32 UTC

Exploited: Yes

Timestamps
First Seen: 2024-01-11
Asserted: 2024-01-11
Scope
Notes: The Backup Migration plugin for WordPress is vulnerable to unauthorized access of data due to insufficient path and file validation on the... | Affected: Migrate / Backup Migration | CVSS: 7.5 (HIGH) | EPSS: 0.02055 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title The Backup Migration plugin for WordPress is vulnerable to unauthorized access of data due to insufficient path and file validation on the...
Cve Id CVE-2023-6266
Vendor Migrate
Ghsa Id None
Product Backup Migration
Added Date 2024-01-11T08:32:27.000Z
Cvss Score 7.5
Epss Score 0.02055
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.81307
Used In Malware unknown
Vulnerability Id CVE-2023-6266
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-11-04 13:01 UTC | Updated: 2026-11-04 13:01 UTC
Show details on NVD website
To clipboard 

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