CVE-2026-86826 Details
Description
The BackWPup WordPress plugin before 5.7.7 does not properly restrict web access to the working directory it uses during backup restores, allowing unauthenticated attackers, on webservers that do not honour .htaccess rules such as NGINX, to download the full backup archive (database dump and site files, including credentials and secret keys) left behind by an interrupted restore.
A vulnerability in the BackWPup WordPress plugin, affecting versions prior to 5.7.7, allows unauthenticated attackers to access sensitive data. The plugin fails to properly restrict web access to the working directory used during backup restores. This issue is particularly problematic on web servers like NGINX that do not honor .htaccess rules. Exploitation of this vulnerability enables the download of full backup archives, including database dumps and site files such as credentials and secret keys, left behind by interrupted restore processes.
Users are advised to update the BackWPup WordPress plugin to version 5.7.7 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 8, 2026CISA-ADP
Assessed Oct 8, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://wpscan.com/vulnerability/ee9f0772-ac6f-4e2d-a2c0-cc8892291932/ | [email protected] | AdvisoryExploitRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| BackWPup | < 5.7.7 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 8, 2026 | CVE Modified | CISA-ADP |
| Oct 8, 2026 | New CVE Received | [email protected] |
Volerion