Added v21.11.3 blogpost

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+categories = ["Releases"]
+tags = ["Releases"]
+title = "BookStack Security Release v21.11.3"
+date = 2021-12-15T13:00:00Z
+author = "Dan Brown"
+image = "/images/blog-cover-images/door-lock-lucas-santos.jpg"
+slug = "bookstack-release-v21-11-3"
+draft = false
++++
+
+BookStack v21.11.3 has been released.
+This is a security release that helps prevent potential discovery and harvesting of user
+details including name and email address.
+
+It's advised to upgrade as soon as possible if your BookStack instance is public or
+is used by untrusted members.
+
+* [Update instructions](https://www.bookstackapp.com/docs/admin/updates)
+* [GitHub release page](https://github.com/BookStackApp/BookStack/releases/tag/v21.11.3)
+
+Thanks to @haxatron for discovering and reporting this vulnerability via huntr.dev.
+
+### Full List of Changes
+
+* Helped prevent discovery and harvesting of user information. Thanks @haxatron for reporting. ([#3108](https://github.com/BookStackApp/BookStack/issues/3108))
+* Updated search API results to include the highlighted preview content. ([#3096](https://github.com/BookStackApp/BookStack/issues/3096))
+* Updated search API results to include item URL. ([#3080](https://github.com/BookStackApp/BookStack/issues/3080))
+* Updated translations with latest Crowdin changes. ([#3093](https://github.com/BookStackApp/BookStack/pull/3093))
+
+
+### For More Information
+
+If you have any questions or comments about this advisory:
+* Open an issue in [the BookStack GitHub repository](BookStackApp/BookStack/issues).
+* Ask on the [BookStack Discord chat](https://discord.gg/ztkBqR2).
+* Follow the [BookStack security policy](https://github.com/BookStackApp/BookStack/blob/master/.github/SECURITY.md) to contact someone privately.
+
+----
+
+<span style="font-size: 0.8em;opacity:0.9;">Header Image Credits: <span>Photo by <a href="https://unsplash.com/@_staticvoid?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText">Lucas Santos</a> on <a href="https://unsplash.com/?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText">Unsplash</a></span></span>
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