Is CVE-2021-32674 actively exploited?

No active exploitation of CVE-2021-32674 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-32674 be exploited remotely?

Yes. CVE-2021-32674 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-32674?

CVE-2021-32674 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2021-32674

CWE-22Published: June 8, 2021· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

Zope is an open-source web application server. This advisory extends the previous advisory at https://github.com/zopefoundation/Zope/security/advisories/GHSA-5pr9-v234-jw36 with additional cases of TAL expression traversal vulnerabilities. Most Python modules are not available for using in TAL expressions that you can add through-the-web, for example in Zope Page Templates. This restriction avoids file system access, for example via the 'os' module. But some of the untrusted modules are available indirectly through Python modules that are available for direct use. By default, you need to have the Manager role to add or edit Zope Page Templates through the web. Only sites that allow untrusted users to add/edit Zope Page Templates through the web are at risk. The problem has been fixed in Zope 5.2.1 and 4.6.1. The workaround is the same as for https://github.com/zopefoundation/Zope/security/advisories/GHSA-5pr9-v234-jw36: A site administrator can restrict adding/editing Zope Page Templates through the web using the standard Zope user/role permission mechanisms. Untrusted users should not be assigned the Zope Manager role and adding/editing Zope Page Templates through the web should be restricted to trusted users only.

NVD Source

Technical Analysis

CVE-2021-32674 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.