CVE-2017-1000484: Plone - URL Redirection Vulnerability
Summary
CVE-2017-1000484: By linking to a specific url in Plone 2.5-5.1rc1 with a parameter, an attacker could send you to his own website. Affects plone versions >= 2.5, < 5.1.0. Fixed in 5.1.0. How to fix ↓
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Background
Plone is an open-source content management system built on top of the Zope application server. It provides a user-friendly interface for managing websites and supports various features such as content creation, collaboration, and workflow management. Plone versions 2.5 to 5.1rc1 are affected by a URL redirection vulnerability.
Vulnerability Detail
The vulnerability in Plone allows an attacker to redirect users to their own website by manipulating a specific URL parameter. While this alone may not be a severe issue, it can be combined with another attack to trick users into logging in on the Plone login form and then redirecting them to the attacker's website. The specific URL can be found by inspecting the hotfix code.
How To Fix
Latest published version: 6.2.2 as of 23 Oct 2026
pip install --upgrade "plone==6.2.2"Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
5.1.0
This is the first release that contains the fix.
pip install --upgrade "plone==5.1.0"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround provided for this vulnerability. It is advised to apply the recommended fix by upgrading to the latest version of Plone.
Conclusion
The URL redirection vulnerability in Plone can be exploited to redirect users to malicious websites. It is crucial to upgrade to the latest version of Plone (5.1.0 or later) to mitigate this vulnerability. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability allows an attacker to redirect users to their own website, potentially leading to phishing attacks or unauthorized access to user accounts.
You can use the Vulert Playground at Vulert Scanner to check if your Plone installation is affected by this vulnerability.
Plone versions 2.5 to 5.1rc1 are affected by this vulnerability. Upgrading to Plone 5.1.0 or later is recommended.
No, the recommended solution is to upgrade to Plone 5.1.0 or later.
There are no known public exploits for this vulnerability at the moment.
References
Related vulnerabilities
Recent vulnerabilities recorded for plone.
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