CVE-2013-4193: Plone - Unspecified Content Edit Form Field Hiding
Summary
CVE-2013-4193: typeswidget.py in Plone 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 does not properly enforce the immutable setting on unspecified content edit forms, which allows remote attackers to hide fields on the... Affects plone across 3 version ranges.
>= 2.1, < 4.1.1
>= 4.2, < 4.2.6
>= 4.3, < 4.3.2
Fixed in 4.1.1, 4.2.6 or 4.3.2, depending on the release line you run. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
Plone is an open-source content management system (CMS) built on top of the Zope application server. It provides a user-friendly interface for managing websites, intranets, and collaborative workspaces. Plone allows users to create, edit, and publish content through various forms and widgets. However, versions 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 of Plone suffer from a vulnerability that allows remote attackers to hide fields on unspecified content edit forms.
Vulnerability Detail
The vulnerability in Plone arises from the improper enforcement of the immutable setting on unspecified content edit forms. By crafting a malicious URL, remote attackers can manipulate the forms and hide specific fields. This can lead to various security issues, such as unauthorized access, data manipulation, or bypassing intended restrictions. The vulnerability affects multiple versions of Plone, making it crucial for users to address this issue promptly.
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 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.
-
>= 2.1, < 4.1.14.1.1pip install --upgrade "plone==4.1.1" -
>= 4.2, < 4.2.64.2.6pip install --upgrade "plone==4.2.6" -
>= 4.3, < 4.3.24.3.2pip install --upgrade "plone==4.3.2"
Tip — Not sure which release line you're on? Vulert can find the fix for the version you are using. Scan free →
Workaround
No specific workaround has been provided for this vulnerability.
Conclusion
The vulnerability in Plone versions 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 allows remote attackers to hide fields on unspecified content edit forms. To mitigate this issue, users should upgrade their Plone installations to the fixed versions (4.1.1, 4.2.6, or 4.3.2). It is recommended to test the upgraded installation thoroughly before deploying it to production environments. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for plone →
FAQ
The vulnerability allows remote attackers to hide fields on unspecified content edit forms, which can lead to unauthorized access, data manipulation, or bypassing intended restrictions.
Versions 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 of Plone are affected.
You can use the Vulert Playground at Vulert Scanner to check if your Plone installation is affected by this vulnerability. Simply enter your Pipfile.lock and it will provide real-time alerts for open-source vulnerabilities.
There are no known exploits for this vulnerability at the time of this report. However, it is crucial to address the issue promptly to mitigate potential risks.
You can find more information about this vulnerability in the Plone advisory PYSEC-2014-57 at https://github.com/pypa/advisory-database/blob/main/vulns/plone/PYSEC-2014-57.yaml.
References
Related vulnerabilities
Recent vulnerabilities recorded for plone.
