Advisory by Netsparker.
Name: XSS Vulnerability in phpMemAdmin
Affected Software : phpMemAdmin
Affected Versions : 0.3.1 and possibly below
Vendor Homepage :
Vulnerability Type : Cross-site Scripting
Severity : Important
Status: Still not fixed (18th August 2015)
Netsparker Advisory Reference : NS-15-012

Technical Details
Proof of Concept URL for XSS in phpMemAdmin:

Page: index.php
Parameter Name: URI-BASED
Parameter Type: GET
Attack Pattern:"onmouseover="alert(0x00003A)"

For more information on cross-site scripting vulnerabilities read the article Cross-site Scripting (XSS).

Advisory Timeline
11/05/2015 - First Contact
26/05/2015 - Second Contact
17/06/2015 - Third Contact
14/08/2015 - Fourth Contact
18/08/2015 - Advisory released

Credits & Authors
These issues have been discovered by Omar Kurt while testing Netsparker Web Application Security Scanner.

About Netsparker
Netsparker finds and reports security flaws and vulnerabilities such as SQL Injection and Cross-site Scripting (XSS) in all websites and web applications regardless of the platform and the technology they are built on. Netsparker's unique detection and exploitation techniques allow it to be dead accurate in reporting vulnerabilities, hence it is the first and only False Positive Free web application security scanner.