What is CVE-2021-32633?

CVE-2021-32633 is a medium-severity vulnerability in Plone, classified under Path Traversal. CVSS score: 6.8/10. Published 2021-05-21.

How severe is CVE-2021-32633?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Is CVE-2021-32633 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Plone

CVE-2021-32633

Zope is an open-source web application server. In Zope versions prior to 4.6 and 5.2, users can access untrusted modules indirectly through Python modules that are available for direct use. By default, only users with the Manager role can add or edit Zope Page Templates through the web, but sites that allow untrusted users to add/edit Zope Page Templates through the web are at risk from this vulnerability. The problem has been fixed in Zope 5.2 and 4.6. As a workaround, 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.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.018 (76.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Plone
Zope
Zopefoundation Zope — versions < 4.6, >= 5.0, < 5.2

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

cyllective/CVEs

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
security-advisories@github.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
security-advisories@github.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
security-advisories@github.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-32633?: CVE-2021-32633 is a medium-severity vulnerability in Plone, classified under Path Traversal. CVSS score: 6.8/10. Published 2021-05-21.
How severe is CVE-2021-32633?: Medium severity. CVSS v3 base score is 6.8 out of 10.
Is CVE-2021-32633 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.