CVE-2026-86828
BackWPup < 5.7.7 - Admin+ Path Traversal to RCE via Restore PclZip Fallback
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.
INFO
Published Date :
Oct. 8, 2026, 6:16 a.m.
Last Modified :
Oct. 8, 2026, 6:16 a.m.
Remotely Exploit :
No
Source :
[email protected]
Solution
- Update the BackWPup WordPress plugin to version 5.7.7 or later.
- Ensure the fallback archive library is not used if possible.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-86828.
| URL | Resource |
|---|---|
| https://wpscan.com/vulnerability/be8c0eab-1874-4490-b94e-394f62a522f3/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-86828 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-86828
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-86828 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-86828 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Oct. 08, 2026
Action Type Old Value New Value 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. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/86xxx/CVE-2026-86828.json">CVE-2026-86828</a> Added Reference https://wpscan.com/vulnerability/be8c0eab-1874-4490-b94e-394f62a522f3/