WordPress security changelog
HIGH CVE-2023-54346 Deferred

WordPress Plugin Backup Migration: Sensitive information exposure

WordPress Plugin Backup Migration is affected by sensitive information exposure. The vulnerable path is reachable without authentication. Successful exploitation can disclose data that should not be available to the caller. The published affected range is 1.2.8.

CVE / CNA score 8.7 CVSS 4.0 · disclosure@vulncheck.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
WordPress Plugin Backup Migration
Plugin slug
backup-migration
Affected
1.2.8
Safe version
See mitigation notes
Published
May 05, 2026
Weakness
CWE-538 — Insertion of Sensitive Information into Externally-Accessible File or Directory

This CVE was published May 05, 2026 and is one of 3 known issues for this plugin.

Update, patch or deactivate.

Update WordPress Plugin Backup Migration to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

WordPress Plugin Backup Migration 1.2.8 contains an information disclosure vulnerability that allows unauthenticated attackers to download complete database backups by accessing predictable file paths. Attackers can enumerate backup directories through configuration files and complete logs, then construct direct download URLs to retrieve sensitive backup archives containing full database dumps.

CVE / CNA vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary and upstream sources