CVE-2024-8856 CRITICAL

CVE-2024-8856: Backup and Staging by WP Time Capsule <= 1.22.21 - Unauthenticated Arbitrary File Upload

Vendor Revmakx
Product Backup and Staging by WP Time Capsule
Weakness CWE-434 · Unrestricted file upload
Published November 16, 2024
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

The Backup and Staging by WP Time Capsule plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the the UploadHandler.php file and no direct file access prevention in all versions up to, and including, 1.22.21. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Key dates

02Disclosure timeline

November 16, 2024 CVE published
April 8, 2026 Record updated