* Advisory ID: DRUPAL-SA-CONTRIB-2009-012 * Project: Printer, e-mail and PDF versions (third-party module) * Versions: 5.x, 6.x * Date: 2009 March 18 * Security risk: Highly Critical * Exploitable from: Remote * Vulnerability: Unrestricted e-mailing (spam)

The "Send by e-mail" module, part of the "Printer, e-mail and PDF versions" project, allows users to send e-mail messages while viewing content on the site. This module was found to have multiple vulnerabilities.

-------- UNRESTRICTED E-MAILING (SPAM) ---------------------------------------

Due to improper use of Drupal's flood control API, it is possible for spammers or spambots to send an unlimited numbers of e-mails using the "Send by e-mail" module.

This vulnerability is very similar to the recent vulnerability found in the Forward module and reported in SA-CONTRIB-2009-009 [1]. The security team has received reports of this vulnerability being actively exploited on production sites using the Forward module.

In addition, when sending out e-mails in HTML format, some content is not properly filtered, allowing malicious users to inject arbitrary HTML and script code into these e-mails.

-------- VERSIONS AFFECTED ---------------------------------------------------

* Versions of "Printer, e-mail and PDF versions" 5.x prior to 5.x-4.4 * Versions of "Printer, e-mail and PDF versions" 6.x prior to 6.x-1.4

Drupal core is not affected. If you do not use the contributed "Printer, e-mail and PDF versions" module, there is nothing you need to do.

-------- SOLUTION ------------------------------------------------------------

Install the latest version:

* If you use "Printer, e-mail and PDF versions" 5.x upgrade to Printer, e-mail and PDF versions 5.x-4.4 [2] * If you use "Printer, e-mail and PDF versions" 6.x upgrade to Printer, e-mail and PDF versions 6.x-1.4 [3]

-------- REPORTED BY ---------------------------------------------------------

João Ventura, the "Printer, e-mail and PDF versions" project maintainer

-------- FIXED BY ------------------------------------------------------------

João Ventura, with assistance from James Gilliand and David Rothstein of the Drupal security team

-------- CONTACT -------------------------------------------------------------

The security contact for Drupal can be reached at security at drupal.org or via the form at http://drupal.org/contact [4].

[1] http://drupal.org/node/398564 [2] http://drupal.org/node/406512 [3] http://drupal.org/node/406522 [4] http://drupal.org/contact