Cross-site scripting (XSS) vulnerability in program/steps/mail/func.inc in RoundCube Webmail before 0.8.0, when using the Larry skin, allows remote attackers to inject arbitrary web script or HTML via the email message subject.

Multiple cross-site scripting (XSS) vulnerabilities in T-dah WebMail 3.2.0-2.3 allow remote attackers to inject arbitrary web script or HTML via an e-mail message body with (1) a SCRIPT element, (2) a crafted Cascading Style Sheets (CSS) expression property, (3) a CSS expression property in the STYLE attribute of an arbitrary element, (4) an ONLOAD attribute of a BODY element, (5) a crafted SRC attribute of an IFRAME element, (6) a crafted CONTENT attribute of an HTTP-EQUIV="refresh" META element, or (7) a data: URL in the CONTENT attribute of an HTTP-EQUIV="refresh" META element.

Multiple cross-site scripting (XSS) vulnerabilities in WinWebMail Server 3.8.1.6 allow remote attackers to inject arbitrary web script or HTML via an e-mail message body with (1) a SCRIPT element, (2) a crafted Cascading Style Sheets (CSS) expression property, (3) a CSS expression property in the STYLE attribute of an arbitrary element, (4) a crafted SRC attribute of an IFRAME element, or (5) UTF-7 text in an HTTP-EQUIV="CONTENT-TYPE" META element.

Cross-site scripting (XSS) vulnerability in Roundcube Webmail before 0.7, when Internet Explorer is used, allows remote attackers to inject arbitrary web script or HTML via vectors involving an embedded image attachment.

Cross-site scripting (XSS) vulnerability in Horde_Form in Horde Groupware Webmail Edition before 4.0.6 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, related to email verification. NOTE: Some of these details are obtained from third party information.

Multiple cross-site scripting (XSS) vulnerabilities in Horde IMP before 5.0.18 and Horde Groupware Webmail Edition before 4.0.6 allow remote attackers to inject arbitrary web script or HTML via the (1) composeCache, (2) rtemode, or (3) filename_* parameters to the compose page; (4) formname parameter to the contacts popup window; or (5) IMAP mailbox names. NOTE: some of these details are obtained from third party information.

include/iniset.php in Roundcube Webmail 0.5.4 and earlier, when PHP 5.3.7 or 5.3.8 is used, allows remote attackers to trigger a GET request for an arbitrary URL, and cause a denial of service (resource consumption and inbox outage), via a Subject header containing only a URL, a related issue to CVE-2011-3379.

Cross-site scripting (XSS) vulnerability in index.php in @mail Webmail before 6.2.0 allows remote attackers to inject arbitrary web script or HTML via the MailType parameter in a mail/auth/processlogin action.

Cross-site scripting (XSS) vulnerability in the UI messages functionality in Roundcube Webmail before 0.5.4 allows remote attackers to inject arbitrary web script or HTML via the _mbox parameter to the default URI.

steps/utils/modcss.inc in Roundcube Webmail before 0.5.1 does not properly verify that a request is an expected request for an external Cascading Style Sheets (CSS) stylesheet, which allows remote authenticated users to trigger arbitrary outbound TCP connections from the server, and possibly obtain sensitive information, via a crafted request.