Vulnerability · Published Oct 8, 2026 · Assigned by WPScan

CVE-2026-86828BackWPup < 5.7.7 - Admin+ Path Traversal to RCE via Restore PclZip Fallback

Medium 6.6

In plain English

A medium-severity path traversal in BackWPup from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)6.6Medium

Exploit odds (30 days)0.4%top 63.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Unknown	BackWPup	0 – before 5.7.7

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

References

https://wpscan.com/vulnerability/be8c0eab-1874-4490-b94e-394f62a522f3/ exploit, vdb-entry, technical-description