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Scott Dorman Microsoft MVP, Software Architect, Developer, Author

Phil recently blogged about a newly discovered security vulnerability in the Subtext blogging engine due to a flaw in the way the FCKEditor control was integrated. As far as we know, no one was seriously affected and both a fix and a workaround were found very quickly by the core development team.

If you are running Subtext 1.9.x, a patched version of the Subtext.Providers.BlogEntryEditor.FCKeditor.dll is available as a zip file. After you download the patch ( 7.72KB) , unzip the assembly and copy it into your bin directory.

If you’re running a customized version and the above patch causes problems, you can workaround this issue by backing up and then temporarily removing the following directory in your installation.


The Subtext development team takes security very seriously and this vulnerability has caused us to review our security guidelines to reduce these risks in the future. Phil is planning on a follow up post describing the vulnerability in more detail as well as our revised security plans. He is also planning a post outlining general guidelines for reporting and handling security issues in an open source project based on guidance provided by the Karl Fogel book, Producing Open Source Software.

The code has been fixed in the Subversion and a patched release has been uploaded to SourceForge (Subtext-1.9.5b).

Posted on Friday, September 21, 2007 11:24 PM Subtext | Back to top

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