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How to avoid future Confluence vulnerabilities

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Atlassian have disclosed two security vulnerabilities in Confluence Server and Confluence Data Center. Level? Critical severity. Here’s how to avoid future vulnerabilities.

First things first

It’s important to note that customers who’ve upgraded to Confluence Server or Data Center versions 6.6.12, 6.12.3, 6.13.3, 6.14.2 or higher are not affected. Users of Confluence Cloud are also safe.

Who isn’t safe? You’re not safe if you’ve downloaded and installed the following versions of Confluence Server or Data Center:

  • All 1.x.x, 2.x.x, 3.x.x, 4.x.x and 5.x.x versions

  • All 6.0.x, 6.1.x, 6.2.x, 6.3.x, 6.4.x, and 6.5.x versions

  • All 6.6.x versions before 6.6.12

  • All 6.7.x, 6.8.x, 6.9.x, 6.10.x and 6.11.x versions

  • All 6.12.x versions before 6.12.3

  • All 6.13.x versions before 6.13.3

  • All 6.14.x versions before 6.14.2

You can read more about the specifics of each vulnerability here and here.

What do I do?!

To fix this vulnerability, Atlassian recommend upgrading your Confluence Server or Data Center installations immediately.

For more information, see the links above.


For peace of mind, consider ClearHost


For existing customers...

  • We sent an alert

  • A mitigation was already put in place — we understand the importance of your safety

  • Action will be taken to upgrade you onto a fixed version  there are no delays with ClearHost

  • Our support engineers are waiting to help you with the next steps

If you are not using ClearHost to protect your apps, then you seriously need to reconsider your options. Vulnerabilities aren’t planned for, they just happen. You can’t control everything, but you can take precautionary steps to ensure you’re protected. Do your future self a favour, and be in the right place at the right time with ClearHost.

April 18, 2019
Mehrnaz Karimi
Mehrnaz Karimi

Mehrnaz is a Content Marketing Executive with five years experience in freelance journalism & copywriting, she has seen her writing published in eight different outlets, over print, digital, & television, including tech copywriting.

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