Directory traversal vulnerability in check_lang.php in Yet Another NOCC (YANOCC) 0.1.0 and earlier allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the lang parameter.

NOCC Webmail 1.0 allows remote attackers to obtain the installation path via a direct request to html/header.php.

Multiple cross-site scripting (XSS) vulnerabilities in NOCC Webmail 1.0 allow remote attackers to inject arbitrary web script or HTML via (1) the html_error_occurred parameter in error.php, (2) html_filter_select parameter in filter_prefs.php, (3) html_no_mail parameter in no_mail.php, the (4) page_line, (5) prev, and (6) next parameters in html_bottom_table.php, and the (7) _SESSION['nocc_theme'] parameter in footer.php.

NOCC Webmail 1.0 stores e-mail attachments in temporary files with predictable filenames, which makes it easier for remote attackers to execute arbitrary code by accessing the e-mail attachment via directory traversal vulnerabilities.

Multiple directory traversal vulnerabilities in NOCC Webmail 1.0 allow remote attackers to include arbitrary files via .. (dot dot) sequences and a trailing NULL (%00) byte in (1) the _SESSION['nocc_theme'] parameter in (a) html/footer.php; and (2) the lang and (3) theme parameters and the (4) Accept-Language HTTP header field, when force_default_lang is disabled, in (b) index.php, as demonstrated by injecting PHP code into a profile and accessing it using the lang parameter in index.php.

NOCC Webmail 1.0 allows remote attackers to obtain sensitive information via a direct request to (1) the profiles directory, which leaks e-mail addresses contained in filenames of profiles, and (2) the tmp directory, which lists names of uploaded attachments.

Cross-site scripting (XSS) vulnerability in NOCC 0.9 through 0.9.5 allows remote attackers to inject arbitrary web script or HTML via email messages.