Backup Guard <= 1.5.9 - Authenticated Arbitrary File Upload

7.2
Unrestricted Upload of File with Dangerous Type
CVE CVE-2021-24155
CVSS 7.2 (High)
Publicly Published February 18, 2021
Last Updated January 22, 2024
Researcher Nguyen Van Khanh

Description

The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE.

Learn more about Arbitrary File Upload vulnerabilities and how to prevent them.

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Vulnerability Details for JetBackup – Backup, Restore & Migrate

Software Type Plugin
Software Slug backup (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.6.0, or a newer patched version
Affected Version
  • <= 1.5.9
Patched Version
  • 1.6.0

Recent vulnerabilities in JetBackup – Backup, Restore & Migrate

# Title CVE ID CVSS Researchers Date
1 JetBackup <= 3.1.19.8 - Authenticated (Administrator+) Arbitrary Directory Deletion via Path Traversal in 'fileName' Parameter CVE-2026-4853 4.9 lucsob April 16, 2026
2 JetBackup <= 2.0.9.7 - Sensitive Information Exposure via Directory Listing CVE-2023-7165 9.8 Dmitrii Ignatyev February 2, 2024
3 Backup Guard <= 1.6.9 - Authenticated (Administrator+) Stored Cross-Site Scripting CVE-2022-34148 5.5 Muhammad Daffa October 27, 2022
4 JetBackup – WP Backup, Migrate & Restore <= 1.4.1 - Missing Authorization to Unauthorized Backup Location Change CVE-2020-36667 5.4 Chloe Chamberland July 30, 2020
5 JetBackup – WP Backup, Migrate & Restore <= 1.4.0 - Sensitive Information Disclosure CVE-2020-36668 4.3 Chloe Chamberland July 30, 2020
6 JetBackup – WP Backup, Migrate & Restore <= 1.3.9 - Cross-Site Request Forgery to Arbitrary File Upload CVE-2020-36669 8.8 Chloe Chamberland July 16, 2020
7 BackupGuard <= 1.1.46 - Reflected Cross-Site Scripting CVE-2017-10837 6.1 Chris Liu August 24, 2017
8 Backup Guard <= 1.1.46 - Cross-Site Scripting CVE-2017-18488 6.1 August 11, 2017
9 WordPress Backup and Migrate Plugin – Backup Guard < 1.0.3 - Arbitrary File Upload 8.8 James Golovich February 15, 2016

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