CVE-2011-0720: Plone - Unspecified Remote Administrative Access Vulnerability
Summary
CVE-2011-0720: Unspecified vulnerability in Plone 2.5 through 4.0, as used in Conga, luci, and possibly other products, allows remote attackers to obtain administrative access, read or create arbitrary content, and change the site skin... Affects plone versions < 4.0.1. Fixed in 4.0.1. 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 creating web applications. Plone is widely used and has a large community of developers and users. However, versions 2.5 through 4.0 of Plone, including related products like Conga and luci, are affected by an unspecified vulnerability.
Vulnerability Detail
The vulnerability allows remote attackers to gain administrative access, read or create arbitrary content, and change the site skin. The exact vectors of attack are unknown. This vulnerability poses a significant risk as it grants unauthorized access to sensitive administrative functions and allows the attacker to manipulate the site's content and appearance.
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
4.0.1
This is the first release that contains the fix.
pip install --upgrade "plone==4.0.1"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
No workaround has been provided for this vulnerability.
Conclusion
The unspecified vulnerability in Plone versions 2.5 through 4.0 poses a significant risk by granting remote attackers administrative access and the ability to manipulate content and appearance. Users are advised to upgrade to Plone 4.0.1 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
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 creating web applications.
Versions 2.5 through 4.0 of Plone, including related products like Conga and luci, are affected.
If exploited, an attacker can gain administrative access, read or create arbitrary content, and change the site skin.
No specific exploits have been disclosed for this vulnerability at this time.
To protect your Plone installation, it is recommended to upgrade to version 4.0.1 or later, which includes a fix for this vulnerability.
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