CVE-2026-86828CWE-22path-traversal

CVE-2026-86828

Medium · published October 8, 2026

CVSS v3.1
6.6
EPSS
0%
Percentile
35.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.6 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00421 · 35.3th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-10-08T10:16Z
References (1)
https://wpscan.com/vulnerability/be8c0eab-1874-4490-b94e-394f62a522f3/ · [email protected]
EPSS history
Timeline
  • 09 OCT 03:32Z
    EPSS moved — → 0%
    epss
  • 08 OCT 06:00Z
    BackWPup < 5.7.7 - Admin+ Path Traversal to RCE via Restore PclZip Fallback
    cvelistv5
  • 08 OCT 06:00Z
    BackWPup < 5.7.7 - Admin+ Path Traversal to RCE via Restore PclZip Fallback
    cvelistv5