CVEvulnerability
CVE-2021-32811
7.2 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-08-02
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P
- Weaknesses
- CWE-1321, CWE-915
Description
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.
Affected configurations
• zope accesscontrol (>= 4.0 < 4.3)
• zope accesscontrol (>= 5.0 < 5.2)
• zope zope (>= 4.0 < 4.6.3)
• zope zope (>= 5.0 < 5.3)
Related
References
- https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-qcx9-j53g-ccgf Third Party Advisory
- https://github.com/zopefoundation/Zope/commit/f72a18dda8e9bf2aedb46168761668464a4be988 Patch, Third Party Advisory
- https://github.com/zopefoundation/Zope/security/advisories/GHSA-g4gq-j4p2-j8fr Third Party Advisory
- https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-qcx9-j53g-ccgf Third Party Advisory
- https://github.com/zopefoundation/Zope/commit/f72a18dda8e9bf2aedb46168761668464a4be988 Patch, Third Party Advisory
- https://github.com/zopefoundation/Zope/security/advisories/GHSA-g4gq-j4p2-j8fr Third Party Advisory