Intel

AIKIDO-2026-10140

waterhole/core is vulnerable to Cross-site Scripting (XSS)

Cross-site Scripting (XSS) Pre-CVE
Found by Aikido Intel before public disclosure or CVE publication.
Published Feb 9, 2026

61

Medium Risk

This Affects:

PHPwaterhole/core
0.1.0 - 0.5.0
Fixed in 0.6.0
Are you affected? Scan for Free

TL;DR

Affected versions of this package improperly embed user-controlled input into an HTML attribute without output encoding, allowing reflected XSS via the return parameter; an attacker can craft a malicious URL where return contains injected quotes and script payloads, which are rendered into the hidden input and executed in the victim's browser when the page loads or when the value is later consumed by client-side code.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

waterhole/core is vulnerable to Cross-site Scripting (XSS) in versions 0.1.0 - 0.5.0.

How to fix this

Upgrade the waterhole/core library to the patch version.