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WordPress Plugin Vulnerabilities

Simple School Staff Directory <= 1.1 - Admin+ Arbitrary File Upload

Description

The plugin does not validate uploaded logo pictures to ensure that are indeed images, allowing high privilege users such as admin to upload arbitrary file like PHP, leading to RCE

Proof of Concept

As admin, upload a PHP file via the Add Logo page of the plugin (https://example.com/wp-admin/options-general.php?page=simple-schools-staff-directory%2Fsi_main.php)

The file will be located at  https://example.com/wp-content/uploads/logos/<filename.php> 

Affects Plugins

simple-schools-staff-directory
No known fix - plugin closed

References

CVE
CVE-2021-24663

Classification

Type

UPLOAD

CWE
CWE-434

Miscellaneous

Original Researcher

Chuang Li

Submitter

Chuang Li

Submitter website
https://github.com/CreativeChuang
Verified

Yes

WPVDB ID
8b5b5b57-50c5-4cd8-9171-168c3e9df46a

Timeline

Publicly Published

2021-08-23 (about 9 months ago)

Added

2021-08-23 (about 9 months ago)

Last Updated

2022-03-07 (about 2 months ago)

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