--- title: "TYPO3-EXT-SA-2014-007: Arbitrary code execution in extension \"powermail\" (powermail)" url: "https://news.typo3.com/security/advisory/typo3-ext-sa-2014-007" description: "It has been discovered that the extension \"powermail\" (powermail) is susceptible to arbitrary code execution and Cross-Site Scripting" image: "https://news.typo3.com/_assets/d1e01514e4c4a5b3147940fa2ec50682/Images/og-image-news.jpg" date: 2026-06-11 modified: 2026-06-11 categories: - TYPO3 Extensions --- # TYPO3-EXT-SA-2014-007: Arbitrary code execution in extension "powermail" (powermail) - Security / [TYPO3 Extensions](https://news.typo3.com/article/category/security/typo3-extensions) TYPO3-EXT-SA-2014-007: Arbitrary code execution in extension "powermail" (powermail) ==================================================================================== 22 May 2014 ![A laptop screen displaying a list of security advisories](https://news.typo3.com/typo3temp/assets/_processed_/d/c/csm_security_blog_default_77f8e86036.webp) It has been discovered that the extension "powermail" (powermail) is susceptible to arbitrary code execution and Cross-Site Scripting - ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/bbf959d8e683550c90ae922aff9145d8.jpeg)[Marcus Krause](https://news.typo3.com/article/author/marcus-krause) **Release Date:** May 22, 2014 **Component Type:** Third party extension. This extension is not a part of the TYPO3 default installation. **Affected Versions:** powermail: Versions 2.0.13 and below, 1.6.10 and below **Vulnerability Type:** Arbitrary Code Execution **Severity:** Critical **Suggested CVSS v2.0:** [AV:N/AC:L/Au:N/C:C/I:C/A:C/E:F/RL:O/RC:C](http://jvnrss.ise.chuo-u.ac.jp/jtg/cvss/cvss2.cgi?vector=%28AV:N/AC:L/Au:N/C:C/I:C/A:C/E:F/RL:O/RC:C%29&g=2&lang=en "CVSS calculator") ([What's that?](http://buzz.typo3.org/teams/security/article/use-of-common-vulnerability-scoring-system-in-typo3-security-advisories/ "Blog post on CVSS usage")) **CVE:** CVE-2014-3947 **Problem Description:** The extension powermail offers the possibility to upload files. It was discovered that it was possible to upload files with specially crafted file extensions, which could be executed as PHP files on the server when using Apache as web server with mod\_mime available (default). Uploading files in powermail is possible without finally submitting the form, so a malicious file could be uploaded without further discovery. Failing to check the uploaded file name against the fileDenyPattern pattern, powermail is susceptible to arbitrary code execution. Please also read an [older bulletin](http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-20080611-1/) and a [blog article](http://buzz.typo3.org/teams/security/article/advice-on-core-security-issue-regarding-filedenypattern/) for further information about this issue in combination with Apache as web server. **Solution:** Updated versions 2.0.14 and 1.6.11 are available from the TYPO3 extension manager and at [http://typo3.org/extensions/repository/download/powermail/2.0.14/t3x/](http://typo3.org/extensions/repository/download/powermail/2.0.14/t3x/ "Opens external link in new window") and [http://typo3.org/extensions/repository/download/powermail/1.6.11/t3x/](http://typo3.org/extensions/repository/download/powermail/1.6.11/t3x/ "Opens external link in new window"). Users of the extension are advised to update the extension as soon as possible. **Credits:** Credits go to Wouter van Dongen who discovered and reported the issue. **Affected Versions:** powermail: Versions 1.6.10 and below **Vulnerability Type:** Cross-Site Scripting **Severity:** Low **Suggested CVSS v2.0:** [AV:N/AC:L/Au:S/C:P/I:P/A:N/E:F/RL:O/RC:C](http://jvnrss.ise.chuo-u.ac.jp/jtg/cvss/cvss2.cgi?vector=%28AV:N/AC:L/Au:S/C:P/I:P/A:N/E:F/RL:O/RC:C%29&g=2&lang=en "CVSS calculator") ([What's that?](http://buzz.typo3.org/teams/security/article/use-of-common-vulnerability-scoring-system-in-typo3-security-advisories/ "Blog post on CVSS usage")) **CVE:** CVE-2014-3948 **Problem Description: I**t was discovered that versions 1.6.10 and below are susceptible to Cross-Site SCripting within the HTML export wizard in the backend module. **Solution:** An updated version 1.6.11 is available from the TYPO3 extension manager and at [http://typo3.org/extensions/repository/download/powermail/1.6.11/t3x/](http://typo3.org/extensions/repository/download/powermail/1.6.11/t3x/ "Opens external link in new window"). Users of the extension are advised to update the extension as soon as possible. **Credits:** Credits go to Florian Grunow who discovered and reported this issue. **General advice:** Follow the recommendations that are given in the [TYPO3 Security Guide](http://docs.typo3.org/typo3cms/SecurityGuide/ "Initiates file download"). Please subscribe to the [typo3-announce mailing list](http://lists.typo3.org/cgi-bin/mailman/listinfo/typo3-announce "Opens external link in new window") to receive future Security Bulletins via E-mail. ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/b5c88386e5b1d8fca79d0652427922d2.jpeg) About the Author [Marcus Krause](https://news.typo3.com/article/author/marcus-krause) [More posts by this author](https://news.typo3.com/article/author/marcus-krause)