CVE-2026-86828

BackWPup < 5.7.7 - Admin+ Path Traversal to RCE via Restore PclZip Fallback

Published Oct 8, 2026 CVSS 3.1 · 6.6 Medium EPSS < 1% KEV · Not listed
Description
The BackWPup WordPress plugin before 5.7.7 does not properly restrict the destination path of files extracted during a backup restore when its fallback archive library is used, allowing high-privileged users to write files outside the intended restore directory, potentially leading to remote code execution.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions backwpup
Vendors & Products Wordpress-extensions
Wordpress-extensions backwpup
Type Values Removed Values Added
Weaknesses CWE-73
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-22
CWE-73
Type Values Removed Values Added
Description The BackWPup WordPress plugin before 5.7.7 does not properly restrict the destination path of files extracted during a backup restore when its fallback archive library is used, allowing high-privileged users to write files outside the intended restore directory, potentially leading to remote code execution.
Title BackWPup < 5.7.7 - Admin+ Path Traversal to RCE via Restore PclZip Fallback
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Oct 8, 2026, 10:59 AM
Reserved
Sep 8, 2026, 2:26 PM
Status
Deferred
Published
Oct 8, 2026, 6:16 AM
Modified
Oct 8, 2026, 8:51 PM