---
id: CVE-2025-10579
title: >-
  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
summary: >-
  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 …
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-862
published: '2025-10-25'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T11:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-10579'
references:
  - url: >-
      https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3381187%40backwpup%2Ftrunk&old=3362645%40backwpup%2Ftrunk&sfp_email=&sfph_mail=#file23
    label: security@wordfence.com
  - url: 'https://research.cleantalk.org/cve-2025-10579'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/1e9a1484-2000-47fa-9890-fa02eddabcd9?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00279
epssPercentile: 0.18636
ingestedAt: '2026-10-08T11:31:27.577Z'
---

## Overview

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).

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.