Information
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Advisory by Netsparker (now Invicti)
Name: Cross-Site Scripting Vulnerability in Geeklog
Affected Software: Geeklog
Affected Versions: 2.2.1
Vendor Homepage: https://www.geeklog.net/
Vulnerability Type: Cross-Site Scripting
Severity: Important
Status: Fixed
CVSS Score (3.0): 7.4 (High)
Invicti Advisory Reference: NS-20-001

Technical Details
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Cross-site Scripting

URL : http://sectestapp/geeklog-2.2.1/public_html/admin/plugins.php?direction=x"%20onmouseover=netsparker(0x01AAEC)%20x="&order=1&prevorder=pi_load
Parameter Name : direction
Parameter Type : GET
Attack Pattern : x%22+onmouseover%3dnetsparker(0x01AAEC)+x%3d%22

URL : http://sectestapp/geeklog-2.2.1/public_html/admin/plugins.php?direction=ASC&order=1&prevorder=x"%20onmouseover=netsparker(0x019E05)%20x="
Parameter Name : prevorder
Parameter Type : GET
Attack Pattern : x%22+onmouseover%3dnetsparker(0x019E05)+x%3d%22

For more information on cross-site scripting vulnerabilities read the article The Cross-site Scripting (XSS) Vulnerability: Definition and Prevention.

Advisory Timeline
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11th March 2020 - First Contact
20th April 2020 - Vendor Fixed
27th April 2020 - Advisory Released

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

About Invicti
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Invicti Security is transforming the way web applications are secured. Invicti empowers organizations in every industry to scale their overall security operations, make the best use of their security resources, and engage developers in helping to improve their overall security posture.