Improper Input Validation in All-in-One WP Migration and Backup Plugin by WordPress
CVE-2026-12898

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
All-in-one WP Migration And Backup
Vendor
CVE Published:
20 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-12898?

The All-in-One WP Migration and Backup plugin for WordPress prior to version 7.106 contains an improper input validation flaw. This vulnerability allows unauthenticated attackers to create or append log files in arbitrary locations outside of the intended storage directory. The plugin fails to properly sanitize user-supplied values when constructing file paths, potentially leading to unauthorized file access and modification.

Affected Version(s)

All-in-One WP Migration and Backup 7.87 < 7.106

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-12898 - Proof of Concept

References

https://wpscan.com/vulnerability/c90553e4-8e1a-4c99-a28f-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jakub Herman
WPScan
.