FluxBB 1.5.11 Cross Site Scripting

2025.03.10

Credit: Chokri Hammedi

Risk: Low

Local: No

Remote: Yes

CVE: N/A

CWE: N/A

# Exploit Title: FluxBB 1.5.11 Stored xss
# Date: 3/8/2025
# Exploit Author: Chokri Hammedi
# Vendor Homepage: www.fluxbb.org
# Software Link: https://www.softaculous.com/apps/forums/FluxBB
# Version: FluxBB 1.5.11
# Tested on: Windows XP


1. login to admin panel
2. go to /admin_forums.php
3. click on "add forum"
4. in description text area put this payload:

<iframe src=javascript:alert(1)>

5. save changes
now everytime users enter the home page will see the alert.

See this note in RAW Version

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{{ x.nick }} | Date: {{ x.ux * 1000 | date:'yyyy-MM-dd' }} {{ x.ux * 1000 | date:'HH:mm' }} CET+1

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FluxBB 1.5.11 Cross Site Scripting

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