--- title: "CVE-2011-2931\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2011-2931?format=md keywords: index, follow --- # CVE-2011-2931 Publication date 29 August 2011 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description Cross-site scripting (XSS) vulnerability in the strip\_tags helper in actionpack/lib/action\_controller/vendor/html-scanner/html/node.rb in Ruby on Rails before 2.3.13, 3.0.x before 3.0.10, and 3.1.x before 3.1.0.rc5 allows remote attackers to inject arbitrary web script or HTML via a tag with an invalid name. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | rails | 11.04 natty | Fixed 2.3.5-1.2ubuntu1.1 | | 10.10 maverick | Fixed 2.3.5-1.1ubuntu0.1 | | 10.04 LTS lucid | Fixed 2.2.3-2ubuntu0.1 | | 8.04 LTS hardy | Ignored end of life | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2011-2931?format=md#patch-details) ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | rails | * Other: [586a944](https://github.com/rails/rails/commit/586a944ddd4d03e66dea1093306147594748037a) * Vendor: | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2931) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-2931) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-2931) * [Debian](https://security-tracker.debian.org/tracker/CVE-2011-2931) ### Other references * * *