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WordPress Plugin Vulnerabilities

Zyrex Popup < 1.1 - Admin+ Arbitrary File Upload

Description

The plugin does not validate the type of files uploaded when creating a popup, allowing a high privileged user (such as an Administrator) to upload arbitrary files, even when modifying the file system is disallowed, such as in a multisite install.

Proof of Concept

Create a new popup by filling in anything in the title (Tytul) and link (Link) fields. 
Then select a php file as the image, and click "Dodaj popup" to add the popup.

The uploaded file can be accessed as http://example.com/wp-content/uploads/zyrex_popup/payload.php

By activating the popup (click the "Aktywuj" button), the payload will be loaded and executed whenever the popup is to be shown on the site. 

Affects Plugins

popup-zyrex
Fixed in version 1.1

References

CVE
CVE-2023-0924

Classification

Type

UPLOAD

CWE
CWE-434

Miscellaneous

Original Researcher

Yogesh Verma

Submitter

Yogesh Verma

Submitter website
https://y0gesh-verma.github.io/
Submitter twitter
_y0gesh_verma
Verified

Yes

WPVDB ID
0fd0d7a5-9263-43b6-9244-7880c3d3e6f4

Timeline

Publicly Published

2023-04-04 (about 1 months ago)

Added

2023-04-04 (about 1 months ago)

Last Updated

2023-04-20 (about 1 months ago)

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