CVE-2026-86828

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

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.

Affected

BackWPup

CVSS v3.1 CNA

6.6 MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

0.42% chance of exploitation in the next 30 days, 35th percentile

Published

2026-10-08

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/be8c0eab-1874-4490-b94e-394f62a522f3/

References

• CVE Record
• NVD entry