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 all versions up to, and including, 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).
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 5.3NVD modified 2026-10-08 11:10
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 3
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3381187%40backwpup%2Ftrunk&old=3362645%40backwpup%2Ftrunk&sfp_email=&sfph_mail=#file23
- https://research.cleantalk.org/cve-2025-10579
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1e9a1484-2000-47fa-9890-fa02eddabcd9?source=cve