Plone through 5.2.4 allows remote authenticated managers to perform disk I/O via crafted keyword arguments to the ReStructuredText transform in a Python script.

The version of Plone installed on the remote host is 4.3.x prior to 5.2.5. It is, therefore, affected by the following vulnerabilities:

  - Plone CMS has a stored Cross-Site Scripting (XSS) vulnerability in the user fullname property and the file     upload functionality. (CVE-2021-3313)

  - Products.PluggableAuthService within Zope has an information disclosure vulnerability - everyone can list the names of     roles defined in the ZODB Role Manager plugin if the site uses this plugin. (CVE-2021-21336)

  - Products.GenericSetup within Zope has an information disclosure vulnerability - anonymous visitors may     view log and snapshot files generated by the Generic Setup Tool. (CVE-2021-21360)

  - Zope has a remote code execution vulnerability via a traversal in the TAL expressions. (CVE-2021-32633,     CVE-2021-32674)

  - The AccessControl module within Zope has a remote code execution via the use of unsafe classes in     permitted modules. (CVE-2021-32807)

  - Zope Products.CMFCore and Products.PluggableAuthService, as used in Plone and other products, allow     Reflected XSS. (CVE-2021-33507)

  - Plone allows XSS via a full name that is mishandled during rendering of the ownership tab of a content     item. (CVE-2021-33508)

  - Plone allows remote authenticated managers to perform disk I/O via crafted keyword arguments to the     ReStructuredText transform in a Python script. (CVE-2021-33509)

  - Plone allows remote authenticated managers to conduct SSRF attacks via an event ical URL, to read one line     of a file. (CVE-2021-33510)

  - Plone allows SSRF via the lxml parser. (CVE-2021-33511)

  - Plone allows stored XSS attacks (by a Contributor) by uploading an SVG or HTML document. (CVE-2021-33512)

  - Plone allows XSS via the inline_diff methods in Products.CMFDiffTool. (CVE-2021-33513)

  - An issue in Plone CMS allows an attacker to access sensitive information via the RSS feed portlet.
    (CVE-2021-33926)

  - In Plone, Editors are vulnerable to XSS in the folder contents view, if a Contributor has created a folder with a SCRIPT tag     in the description field (CVE-2021-35959)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number. Since a vendor hotfix (PloneHotfix20210518) may remediate this without a version upgrade, this plugin only reports when running in Paranoid mode.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Plone through 5.2.4 allows remote authenticated managers to perform disk I/O via crafted keyword arguments
    to the ReStructuredText transform in a Python script. (CVE-2021-33509)

ID	Name	Product	Family	Type	Severity
329024	Plone 4.3.x < 5.2.5 Multiple Vulnerabilities (HF 20210518)	Nessus	Misc.	Local	critical
415823	SCA: security update for Plone (GHSA-hm2p-fhwx-9285)	Tenable Cloud Security	SCA Checks	Local	critical
415823	SCA: security update for Plone (GHSA-hm2p-fhwx-9285)	Tenable Self-Hosted Container Security	SCA Checks	Local	critical

Detections

Analytics

CVE-2021-33509

critical

Tenable Plugins

critical

critical

critical