PunBB 1.2.10 and earlier allows remote attackers to conduct brute force guessing attacks for an account's password, which may be as short as 4 characters.
Cross-site scripting (XSS) vulnerability in PunBB 1.2.6 and earlier allows remote attackers to inject arbitrary web script or HTML via Javascript contained in nested, malformed BBcode url tags.
PunBB 1.2.9, when used alone or with F-ART BLOG:CMS, includes config.php before calling the unregister_globals function, which allows attackers to obtain unspecified sensitive information.
PunBB 1.2.9, used alone or with F-ART BLOG:CMS, may trust a client's IP address as specified in the X-Forwarded-For HTTP header rather than the TCP/IP stack, which allows remote attackers to misrepresent their IP address by sending a modified header.
PunBB 1.2.9 does not require password entry when changing the e-mail address in an account's profile, which might allow an attacker to make an address change via a hijacked login session.
SQL injection vulnerability in search.php in PunBB 1.2.7 and 1.2.8 allows remote attackers to execute arbitrary SQL commands via the old_searches parameter.
PHP remote file inclusion vulnerability in common.php in PunBB 1.1.2 through 1.1.5 allows remote attackers to execute arbitrary code via the pun_root parameter.
Cross-site scripting (XSS) vulnerability in PunBB before 1.2.8 allows remote attackers to inject arbitrary web script or HTML via the "forgotten e-mail" feature.