CVE-2026-86826

BackWPup < 5.7.7 - Unauthenticated Sensitive Data Disclosure via Restore Working Directory on NGINX

MEDIUM
5.9
CVSS Score
Published: October 8, 2026 at 06:00 AM UTC
Updated: October 8, 2026 at 08:51 PM UTC
1 product affected across 1 vendorBackwpup

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Severity
MEDIUM5.9
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Backwpup· Inpsydewordpress-plugin
90%
0 ≤ v < 5.7.70

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/ee9f0772-ac6f-4e2d-a2c0-cc8892291932/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.9MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-200

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