high
8.8
CWE
918
Advisory Published
Advisory Published
Updated

CVE-2021-33926: SSRF

First published: Fri Feb 17 2023(Updated: )

An issue in Plone CMS allows attacker to access sensitive information via the RSS feed protlet.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
pip/Plone>=4.3<5.2.5
5.2.5
Plone CMS=4.3
Plone CMS=4.3.1
Plone CMS=4.3.2
Plone CMS=4.3.3
Plone CMS=4.3.4
Plone CMS=4.3.5
Plone CMS=4.3.6
Plone CMS=4.3.7
Plone CMS=4.3.8
Plone CMS=4.3.9
Plone CMS=4.3.10
Plone CMS=4.3.11
Plone CMS=4.3.12
Plone CMS=4.3.14
Plone CMS=4.3.15
Plone CMS=4.3.17
Plone CMS=4.3.18
Plone CMS=4.3.19
Plone CMS=4.3.20
Plone CMS=5.0
Plone CMS=5.0-rc1
Plone CMS=5.0-rc2
Plone CMS=5.0-rc3
Plone CMS=5.0.1
Plone CMS=5.0.2
Plone CMS=5.0.3
Plone CMS=5.0.4
Plone CMS=5.0.5
Plone CMS=5.0.6
Plone CMS=5.0.7
Plone CMS=5.0.8
Plone CMS=5.0.9
Plone CMS=5.0.10
Plone CMS=5.1-alpha2
Plone CMS=5.1.1
Plone CMS=5.1.2
Plone CMS=5.1.4
Plone CMS=5.1.5
Plone CMS=5.1.6
Plone CMS=5.1.7
Plone CMS=5.1a1-alpha1
Plone CMS=5.1a2-beta4
Plone CMS=5.1b2-beta3
Plone CMS=5.1b3-beta2
Plone CMS=5.1b4-rc2
Plone CMS=5.1rc1-rc1
Plone CMS=5.1rc2
Plone CMS=5.2.0
Plone CMS=5.2.1
Plone CMS=5.2.2
Plone CMS=5.2.3
Plone CMS=5.2.4

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Reference Links

Frequently Asked Questions

  • How can I determine if my Plone CMS is vulnerable to CVE-2021-33926?

    You can determine vulnerability by checking if your Plone CMS version is 5.2.4 or earlier and comparing it against the official security release notes.

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