Cross-site request forgery (CSRF) vulnerability in compose.php in SquirrelMail before 1.2.3 allows remote attackers to send email as other users via an IMG URL with modified send_to and subject parameters.

The spell checker plugin (check_me.mod.php) for SquirrelMail before 1.2.3 allows remote attackers to execute arbitrary commands via a modified sqspell_command parameter.

Cross-site scripting (XSS) vulnerability in read_body.php in SquirrelMail before 1.2.3 allows remote attackers to execute arbitrary Javascript via a javascript: URL in an IMG tag.

Multiple cross-site scripting (XSS) vulnerabilities in magicHTML of SquirrelMail before 1.2.6 allow remote attackers to inject arbitrary web script or HTML via (1) "<<script" in unspecified input fields or (2) a javascript: URL in the src attribute of an IMG tag.

Cross-site scripting (XSS) vulnerability in read_body.php for SquirrelMail 1.2.10, 1.2.9, and earlier allows remote attackers to insert script and HTML via the (1) mailbox and (2) passed_id parameters.

An incomplete fix for a cross-site scripting (XSS) vulnerability in SquirrelMail 1.2.8 calls the strip_tags function on the PHP_SELF value but does not save the result back to that variable, leaving it open to cross-site scripting attacks.

Cross-site scripting vulnerabilities in SquirrelMail 1.2.7 and earlier allows remote attackers to execute script as other web users via (1) addressbook.php, (2) options.php, (3) search.php, or (4) help.php.

SquirrelMail 1.2.7 and earlier allows remote attackers to determine the absolute pathname of the options.php script via a malformed optpage file argument, which generates an error message when the file cannot be included in the script.

SquirrelMail 1.2.5 and earlier allows authenticated SquirrelMail users to execute arbitrary commands by modifying the THEME variable in a cookie.

Buffer overflow in Elm 2.5.5 and earlier allows remote attackers to execute arbitrary code via a long Message-ID header.