phpBB bbcode.php file make_clickable function cross-site scripting
| phpbb-bbcode-makeclickable-xss (20574) |  Medium Risk |
Description:
phpBB is vulnerable to cross-site scripting. A remote attacker could post a specially-crafted URL to the bbcode.php script containing embedded BBcode in the make_clickable function which, once the entry is viewed, would be executed within the security context of the hosting site.
Platforms Affected:
- Gentoo, Linux
- phpBB, phpBB prior to 2.0.15
Remedy:
Upgrade to the latest version of phpBB (2.0.15 or later), available from the phpBB Download Web page. See References.
For Gentoo Linux:
Upgrade to the latest version of phpbb (2.0.15 or later), as listed in GLSA 200505-10. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- phpBB Web site, What is phpBB? at http://www.phpbb.com/.
- BID-13545: PHPBB URL Tag BBCode.PHP Vulnerability
- CVE-2005-1193: The bbencode_second_pass and make_clickable functions in bbcode.php for phpBB before 2.0.15, as used in viewtopic.php, privmsg.php, and other scripts, allow remote attackers to execute arbitrary script via a BBcode tag with a (1) javascript:, (2) applet:, (3) about:, (4) activex:, (5) chrome:, or (6) script: URI scheme, as demonstrated using the URL tag.
- SA15298: phpBB BBcode Script Insertion Vulnerability
- SECTRACK ID: 1013918: phpBB `bbcode.php` Input Validation Flaw May Let Remote Users Execute Arbitrary Scripting Code
- SECTRACK ID: 1014117: [Duplicate Report] phpBB BBCode URL Tag Input Validation Hole Permits Cross-Site Scripting Attacks
- US-CERT VU#113196: phpBB contains an input validation vulnerability in includes/bbcode.php
Reported:
May 13, 2005
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email xforce@iss.net