Medium severity · published Oct 8, 2026
CVE-2026-86828
BackWPup < 5.7.7 - Admin+ Path Traversal to RCE via Restore PclZip Fallback
6.6
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
BackWPup ·
before 5.7.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-86828
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-86828
exploit
https://wpscan.com/vulnerability/be8c0eab-1874-4490-b94e-394f62a522f3/
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