BackWPup 5 - 5.5.0 - Missing Authorization to Sensitive Information Exposure

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

1 affected software package

Software Type Plugin
Software Slug backwpup (view on wordpress.org)
Patched? Yes
Affected Version
  • 5 - 5.5.0
Patched Version
  • 5.5.1
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