Sign in
Deutsch English Español Polski
Critical

Migration, Backup, Staging <= 0.9.123 - Unauthenticated Arbitrary File Upload

  • Disclosed: 10.02.2026
  • Updated: 11.10.2026 10:23

The Migration, Backup, Staging – WPvivid Backup & Migration plugin for WordPress is vulnerable to Unauthenticated Arbitrary File Upload in versions up to and including 0.9.123. This is due to improper error handling in the RSA decryption process combined with a lack of path sanitization when writing uploaded files. When the plugin fails to decrypt a session key using openssl_private_decrypt(), it does not terminate execution and instead passes the boolean false value to the phpseclib library's AES cipher initialization. The library treats this false value as a string of null bytes, allowing an attacker to encrypt a malicious payload using a predictable null-byte key. Additionally, the plugin accepts filenames from the decrypted payload without sanitization, enabling directory traversal to escape the protected backup directory. This makes it possible for unauthenticated attackers to upload arbitrary PHP files to publicly accessible directories and achieve Remote Code Execution via the wpvivid_action=send_to_site parameter.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
WordPress plugin WPvivid — Backup, Migration & Staging <= 0.9.123 0.9.124

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-434
Platform
WordPress
Package
WPvivid — Backup, Migration & Staging
Disclosed
10.02.2026
Updated
11.10.2026 10:23

Sources and licenses

Wordfence Intelligence - e5af0317-ef46-4744-9752-74ce228b5f37 - Wordfence Intelligence

Copyright 1999-2026 The MITRE Corporation

Copyright 2012-2026 Defiant Inc.

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse
Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/
Wordfence Intelligence
Wordfence Intelligence - Defiant, Inc.
Copyright Defiant, Inc. All rights reserved except as granted below.
License grant, section 3.1 of the Wordfence Intelligence Terms and Conditions (January 26, 2026):

Subject to this Agreement, Company hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute the Service. Any copy you make for such purposes is authorized provided that you reproduce Company’s copyright designation, this license, and the license of any disclosed Company licensor in any such copy.

Full applicable Agreement: https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/

Vulnerability history: WPvivid — Backup, Migration & Staging

All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (33) in the archive
Total entries
33
First → latest
03.2020 09.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 2
  • High 13
  • Medium 16
  • Low 2

Disclosures per year

Severity:
  1. WPvivid — Backup, Migration & Staging < 0.9.134 - Authenticated (Administrator+) Arbitrary File Upload
    High · 7.2 CVE-2026-82193 < 0.9.134 0.9.134
  2. WPvivid — Backup, Migration & Staging < 0.9.133 - Authenticated (Administrator+) Remote Code Execution
    High · 7.2 CVE-2026-19722 < 0.9.133 0.9.133
  3. WPvivid — Backup, Migration & Staging < 0.9.131 - Unauthenticated Path Traversal
    High · 7.5 CVE-2026-19725 < 0.9.131 0.9.131
  4. Migration, Backup, Staging <= 0.9.123 - Unauthenticated Arbitrary File Upload this entry
    Critical · 9.8 CVE-2026-1357 <= 0.9.123 0.9.124
  5. Migration, Backup, Staging – WPvivid Backup & Migration <= 0.9.116 - Authenticated (Administrator+) Arbitrary File Upload
    High · 7.2 CVE-2025-5961 <= 0.9.116 0.9.117
  6. Migration, Backup, Staging – WPvivid <= 0.9.112 - Authenticated (Admin+) Arbitrary File Upload via wpvivid_upload_file
    High · 7.2 CVE-2024-13869 <= 0.9.112 0.9.113
  7. Migration, Backup, Staging – WPvivid <= 0.9.107 - Unauthenticated PHP Object Injection
    High · 8.8 CVE-2024-10962 <= 0.9.107 0.9.108
  8. Migration, Backup, Staging – WPvivid <= 0.9.105 - Sensitive Information Exposure
    High · 7.5 CVE-2024-7315 <= 0.9.105 0.9.106
  9. WPvivid Backup & Migration Plugin <= 0.9.99 - Authenticated (Admin+) PHAR Deserialization
    High · 7.2 CVE-2024-3054 <= 0.9.99 0.9.100
  10. WPvivid Backup and Migration <= 0.9.68 - Unauthenticated SQL Injection
    Critical · 9.8 CVE-2024-1981 = 0.9.68 0.9.69
  11. Migration, Backup, Staging – WPvivid <= 0.9.91 - Google Drive Client Secret Exposure
    High · 8.0 CVE-2023-5576 <= 0.9.91 0.9.92
  12. Migration, Backup, Staging – WPvivid <= 0.9.89 - Authenticated (Administrator+) Arbitrary Directory Deletion via Path Traversal
    High · 8.7 CVE-2023-4274 = 0.9.89 0.9.90
  13. WPvivid Backup Plugin <= 0.9.90 - Missing Authorization via 'start_staging' and 'get_staging_progress'
    High · 8.3 CVE-2023-41243 < 0.9.91 0.9.91
  14. Migration, Backup, Staging – WPvivid <= 0.9.74 - Authenticated (Admin+) PHAR Deserialization
    High · 7.2 CVE-2022-2442 <= 0.9.74 0.9.75
  15. Migration, Backup, Staging – WPvivid <= 0.9.35 - Authenticated (Subscriber+) Arbitrary File Upload
    High · 8.8 CVE-2020-36842 <= 0.9.35 0.9.36

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Privacy policy

Free to subscribe. Unsubscribe with one click in any email.