--- title: "TYPO3-EXT-SA-2017-012: Arbitrary File Disclosure in extension \"restler\" (restler)" url: "https://news.typo3.com/security/advisory/typo3-ext-sa-2017-012" description: "It has been discovered that the extension \"restler\" (restler) is susceptible to Arbitrary File Disclosure." 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-2017-012: Arbitrary File Disclosure in extension "restler" (restler) - Security / [TYPO3 Extensions](https://news.typo3.com/article/category/security/typo3-extensions) TYPO3-EXT-SA-2017-012: Arbitrary File Disclosure in extension "restler" (restler) ================================================================================= 07 November 2017 ![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 "restler" (restler) is susceptible to Arbitrary File Disclosure. - ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/e4eaa13e33dd086a9c06f2570cb34609.jpeg)[Torben Hansen](https://news.typo3.com/article/author/torben-hansen) **Release Date:** November 07, 2017 **Component Type:** Third party extension. This extension is not a part of the TYPO3 default installation. **Affected Versions:** version 1.7.0 and below **Vulnerability Type:** Arbitrary File Disclosure **Severity:** Medium **Suggested CVSS v3.0:** [AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C](https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C "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:** not assigned yet **Problem Description:** The extensions includes a vulnerable version of luracast/restler, which is known to allow users to read content of arbitrary files the webserver has access to. The vulnerability is only exploitable, if access to the vendor-directory of the extension is not forbidden (e.g. by .htaccess) **Solution:** An updated version 1.7.1 is available from the TYPO3 Extension Manager and at [https://extensions.typo3.org/extension/download/restler/1.7.1/zip/](https://extensions.typo3.org/extension/download/restler/1.7.1/zip/ "Opens external link in new window"). Users of the extension are advised to update the extension as soon as possible. **Credits**: Credits go to Amine Bendouil who discovered and reported the vulnerability. **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/7cf52722a5b7183b29d378a2284bd103.jpeg) About the Author [Torben Hansen](https://news.typo3.com/article/author/torben-hansen) Open Source Enthusiast & TYPO3 Expert I’m a passionate open-source advocate and dedicated TYPO3 expert. As a freelancer, I offer professional TYPO3 services to clients while actively contributing to the TYPO3 ecosystem. I have developed several public TYPO3 extensions and serve as the Co-Lead of the TYPO3 Security Team, helping to enhance the platform’s security and functionality. For many years, I have been blogging about TYPO3, sharing insights and expertise with the community. [More posts by this author](https://news.typo3.com/article/author/torben-hansen)