CVE-2021-32811: high-severity vulnerability in zopefoundation Zope
Remote Code Execution via Script (Python) objects under Python 3
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 2.3%
Zope is an open-source web application server. Zope versions prior to versions 4.6.3 and 5.3 have a remote code execution security issue. In order to be affected, one must use Python 3 for one's Zope deployment, run Zope 4 below version 4.6.3 or Zope 5 below version 5.3, and have the optional `Products.PythonScripts` add-on package installed. By default, one must have the admin-level Zope "Manager" role to add or edit Script (Python) objects through the web. Only sites that allow untrusted users to add/edit these scripts through the web are at risk. Zope releases 4.6.3 and 5.3 are not vulnerable. As a workaround, a site administrator can restrict adding/editing Script (Python) objects through the web using the standard Zope user/role permission mechanisms. Untrusted users should not be assigned the Zope Manager role and adding/editing these scripts through the web should be restricted to trusted users only. This is the default configuration in Zope.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
zopefoundation · ZopeRelated CVEs — zopefoundation Zope
In the same product, most dangerous first.
CVE-2021-32633MEDIUMRemote Code Execution via traversal in TAL expressionsEPSS 1.9%CVE-2021-32674HIGHRemote Code Execution via traversal in TAL expressionsEPSS 1.6%CVE-2023-42458LOWZope vulnerable to Stored Cross Site Scripting with SVG imagesEPSS 0.7%CVE-2023-44389LOWZope management interface vulnerable to stored cross site scripting via the title propertyEPSS 0.5%