WordPress File Upload < 4.23.3 – Author+ Stored Cross-Site Scripting | CVE 2023-4811 | Plugin Vulnerabilities

Description

The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as authors to perform Stored Cross-Site Scripting attacks.

Proof of Concept

1. Add the following shortcode to a post:

[wordpress_file_upload redirect="true" redirectlink="javascript:alert(1)"]

2. Upload any file on the resulting post.
3. After the upload completes, you will see the XSS alert in the browser.

Affects Plugins

Fixed in 4.23.3

References

CVE

Classification

Type

XSS

OWASP top 10

A7: Cross-Site Scripting (XSS)

CWE

CVSS

Miscellaneous

Original Researcher

FAIYAZ AHMAD

Submitter

FAIYAZ AHMAD

Verified

Yes

WPVDB ID

7f9271f2-4de4-4be3-8746-2a3f149eb1d1

Timeline

Publicly Published

2023-09-25 (about 2 years ago)

Added

2023-09-25 (about 2 years ago)

Last Updated

2023-09-27 (about 2 years ago)

Other

Published

Title

Published

2025-03-11

Title

Awesome Surveys <= 2.0.10 - Authenticated (Editor+) Stored Cross-Site Scripting

Published

2025-04-01

Title

BlockWheels <= 1.0.2 - Contributor+ Stored XSS

Published

2024-03-21

Title

Cards for Beaver Builder < 1.1.3 - Authenticated(Contributor+) Stored Cross-Site Scripting via bootstrapcard link

Published

2014-08-01

Title

silverOrchid <= 1.5.0 - XSS

Published

2025-04-08

Title

Calculated Fields Form < 5.2.62 - Admin+ Stored XSS