CVE-2026-86828

MEDIUM CVSS 3.1: 6.6
Updated Oct 08, 2026
WordPress
Parameter Value
CVSS 6.6 (MEDIUM)
Affected Versions before 5.7.7
Type CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), CWE-22 (Path Traversal)
Vendor WordPress
Public PoC No

The BackWPup WordPress plugin before 5.7.7 does not properly restrict the destination path of files extracted during a backup restore when its fallback archive library is used, allowing high-privileged users to write files outside the intended restore directory, potentially leading to remote code execution.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products

unknown:backwpup