EventON < 2.2 – Admin + Stored HTML Injection | CVE 2023-6046 | Plugin Vulnerabilities

Description

The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored HTML Injection attacks even when the unfiltered_html capability is disallowed.

Proof of Concept

1. Go to the Virtual Event -> This is a virtual (online) event.

2. Configure Virtual Event Details -> On the second field, the URL field and insert '"><a href="https://miguelsantareno.github.io/resources.html">Clickme!</a> or '"><img src=X>click, and the HTML Injection Stored would appear.

Affects Plugins

Fixed in 2.2

References

CVE

Classification

Type

XSS

OWASP top 10

A7: Cross-Site Scripting (XSS)

CWE

CVSS

Miscellaneous

Original Researcher

Miguel Santareno

Submitter

Miguel Santareno

Submitter website

https://miguelsantareno.github.io/

Submitter twitter

MiguelSantareno

Verified

Yes

WPVDB ID

97f1d403-ae96-4c90-8d47-9822f4d68033

Timeline

Publicly Published

2023-11-09 (about 2 years ago)

Added

2023-11-09 (about 2 years ago)

Last Updated

2023-11-09 (about 2 years ago)

Other

Published

Title

Published

2024-05-17

Title

Logo Slider < 4.0.0 - Contributor+ Stored XSS

Published

2023-05-30

Title

BBS e-Popup <= 2.4.5 - Reflected XSS

Published

2024-06-06

Title

Stellissimo Text Box <= 1.1.4 - Authenticated (Admin+) Stored Cross-Site Scripting

Published

2025-12-11

Title

Data Visualizer <= 1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

Published

2024-10-31

Title

EndomondoWP <= 0.1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting