Zope Command Execution Vulnerability in zope2

zope2 Updated 02 Oct 2025

Summary

17/05/2022

Disclosed on

CVE-2011-3587

CVE

Yes i

Fix available

High

Severity

Not published

CVSS Score

CVE-2011-3587: Zope Command Execution Vulnerability. Affects zope2 across 2 version ranges.

>= 2.12.0, < 2.12.20 >= 2.13.0, < 2.13.10

Fixed in 2.12.20 or 2.13.10, depending on the release line you run. How to fix ↓

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Background

Zope is an open-source web application server written in Python. It is widely used in the Plone content management system. Zope 2.12.x and 2.13.x versions, which are used in Plone versions 4.0.x through 4.0.9, 4.1, and 4.2 through 4.2a2, are affected by a command execution vulnerability. This vulnerability allows remote attackers to execute arbitrary commands by exploiting vectors related to the p_ class in OFS/misc_.py and the use of Python modules.

Vulnerability Detail

The Zope command execution vulnerability in zope2 is a high-severity issue that enables remote attackers to execute arbitrary commands on affected systems. The vulnerability is caused by an unspecified flaw in the p_ class in OFS/misc_.py and the use of Python modules. By exploiting this vulnerability, an attacker can execute arbitrary commands with the privileges of the user running the affected application. This can lead to unauthorized access, data breaches, and potential system compromise.

How To Fix

Latest published version: 4.0.0 as of 23 Oct 2026

pip install --upgrade "zope2==4.0.0"

Upgrading to it may include breaking changes; the versions below are the minimum fixed release for this vulnerability.

If you can't move to the latest

The minimum fixed version depends on the release line you run.

>= 2.12.0, < 2.12.20 2.12.20
```
pip install --upgrade "zope2==2.12.20"
```
>= 2.13.0, < 2.13.10 2.13.10
```
pip install --upgrade "zope2==2.13.10"
```

Tip — Not sure which release line you're on? Vulert can find the fix for the version you are using. Scan free →

Workaround

There is no known workaround for this vulnerability. It is strongly advised to upgrade to the fixed versions mentioned above.

Conclusion

The Zope command execution vulnerability in zope2 is a critical issue that allows remote attackers to execute arbitrary commands. To mitigate this vulnerability, it is crucial to upgrade to the fixed versions of zope2. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for zope2 →

FAQ

What is Zope?

Zope is an open-source web application server written in Python. It is widely used in the Plone content management system.

Which versions of zope2 are affected?

Zope versions 2.12.x and 2.13.x are affected. This includes Plone versions 4.0.x through 4.0.9, 4.1, and 4.2 through 4.2a2.

How can this vulnerability be exploited?

Remote attackers can exploit this vulnerability by leveraging vectors related to the p_ class in OFS/misc_.py and the use of Python modules.

What are the potential consequences of this vulnerability?

By exploiting this vulnerability, attackers can execute arbitrary commands with the privileges of the user running the affected application. This can lead to unauthorized access, data breaches, and potential system compromise.

Are there any workarounds available?

There are no known workarounds for this vulnerability. It is strongly recommended to upgrade to the fixed versions of zope2.

References

Related vulnerabilities

Recent vulnerabilities recorded for zope2.

View all zope2 vulnerabilities →

How To Fix

Latest published version: 4.0.0 as of 23 Oct 2026

pip install --upgrade "zope2==4.0.0"

Upgrading to it may include breaking changes; the versions below are the minimum fixed release for this vulnerability.

If you can't move to the latest

The minimum fixed version depends on the release line you run.

>= 2.12.0, < 2.12.20 2.12.20
```
pip install --upgrade "zope2==2.12.20"
```
>= 2.13.0, < 2.13.10 2.13.10
```
pip install --upgrade "zope2==2.13.10"
```

Tip — Not sure which release line you're on? Vulert can find the fix for the version you are using. Scan free →

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