BackWPup 5 - 5.5.0 - Missing Authorization to Sensitive Information Exposure

5.3
Missing Authorization
CVE CVE-2025-10579
CVSS 5.3 (Medium)
Publicly Published October 24, 2025
Last Updated October 29, 2025
Researcher Dmitrii Ignatyev - CleanTalk Inc

Description

The BackWPup – WordPress Backup & Restore Plugin plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the 'backwpup_working' AJAX action in versions 5 through 5.5.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to retrieve access to a back-up's filename while a backup is running. This information has little value on it's own, but could be used to aid in a brute force attack to retrieve back-up contents in limited environments (i.e. NGINX).

References

Share

Vulnerability Details for BackWPup – WordPress Backup & Restore Plugin

Software Type Plugin
Software Slug backwpup (view on wordpress.org)
Patched? Yes
Remediation Update to version 5.5.1, or a newer patched version
Affected Version
  • 5 - 5.5.0
Patched Version
  • 5.5.1

Recent vulnerabilities in BackWPup – WordPress Backup & Restore Plugin

# Title CVE ID CVSS Researchers Date
1 BackWPup <= 5.6.6 - Authenticated (Administrator+) Local File Inclusion via 'block_name' Parameter CVE-2026-6227 7.2 Pixel_DefaultBR April 13, 2026
2 BackWPup 5.0.0 - 5.6.2 - Authenticated (BackWPup Helper+) Privilege Escalation via Arbitrary Options Update CVE-2025-15041 7.2 0N0ise February 18, 2026
3 BackWPup <= 4.0.1 - Authenticated (Administrator+) Directory Traversal CVE-2023-5505 6.8 Marco Wotschka August 16, 2024
4 BackWPup <= 4.0.2 - Plaintext Storage of Backup Destination Password CVE-2023-5775 2.2 Stefan Marjanov February 23, 2024
5 BackWPup <= 4.0.3 - Sensitive Information Exposure CVE-2023-7164 7.5 Dmitrii Ignatyev December 18, 2023
6 BackWPup <= 4.0.1 - Authenticated (Administrator+) Directory Traversal CVE-2023-5504 8.7 Marco Wotschka November 22, 2023
7 BackWPup <= 3.4.1 - Unauthenticated Backup Download CVE-2017-2551 7.5 Larry W. Cashdollar September 8, 2017
8 BackWPup < 3.0.13 - Cross-Site Scripting CVE-2013-4626 6.1 High-Tech Bridge Security Research Lab August 21, 2013
9 BackWPup <= 1.7.1 - Remote File Inclusion CVE-2011-4342 9.8 Phil Taylor - Sense of Security Labs March 28, 2011
10 BackWPup – WordPress Backup Plugin < 1.4.1 - Directory Traversal CVE-2011-5208 7.5 Danilo Massa March 2, 2011

Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!

Learn more

Want to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.

Get Wordfence

The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.

Documentation