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OpenAdvisories

Vendor

plone

12 known vulnerabilities.

plone at a glance

Last 12 months
6
Critical · all time
3
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
0 3 5 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 1 vulnerability Mar April 2026: 0 vulnerabilities May 2026: 0 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 0 vulnerabilities August 2026: 2 vulnerabilities, 2 critical September 2026: 3 vulnerabilities, 1 critical Sep October 2026: 0 vulnerabilities November 2026: 0 vulnerabilities
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12 results · Feed

  • Medium 6.5

    plone.app.dexterity and plone.app.contenttypes have a Denial of Service due to excessive title or description length

    plone.app.dexterity is a content-type system for the Plone content management system, and plone.app.contenttypes provides Plone’s Dexterity-based content types. Plone.app.dexterity versions through 3.2.2, 4.0.0 through 4.1.2, and 5.0.0, and plone.app.contentt…

  • Critical 9.9

    plone.app.portlets Vulnerable to Remote Code Execution via TALES Injection

    plone.app.portlets.portlets provides a Plone-specific user interface for plone.portlets, as well as a standard set of portlets that ship with Plone. Starting in version 5.0.0 and prior to versions 5.0.8, 6.0.4, and 7.0.2, the Classic portlet (plone.app.portle…

  • Medium 4.3

    plone.app.textfield: Stored XSS by spoofing mime type

    plone.app.textfield provides a zope.schema-style field type called RichText for storing a value with a related MIME type. Prior to 2.0.2, 3.0.2, and 4.0.1, depending on the release line, RichTextValue.output returns an unsanitized stored RichText value when m…

  • Critical 9.1

    plone.app.event: Denial of service via iCalendar import

    plone.app.event provides the event content type for Plone. Prior to versions 5.2.4 and 6.0.1, the iCalendar import in src/plone/app/event/ical/importer.py accepts insufficiently restricted calendar and event URLs, does not adequately bound downloaded bytes or…

  • Critical 9.1

    plone.app.portlets: Denial of service via RSS feed portlet

    plone.app.portlets provides portlets and a Plone-specific user interface for plone.portlets. Prior to 5.0.8, 6.0.4, and 7.0.2, a member who can add an RSS portlet can set its feed URL to a very large response, causing src/plone/app/portlets/portlets/rss.py to…

  • Medium 5.3

    Products.isurlinportal: Possible open redirect when using more than 2 forward slashes

    Products.isurlinportal is a replacement for isURLInPortal method in Plone. Prior to versions 2.1.0, 3.1.0, and 4.0.0, a url /login?came_from=////evil.example may redirect to an external website after login. This issue has been patched in versions 2.1.0, 3.1.0…

  • High 8.7

    @plone/volto vulnerable to potential DoS by invoking specific URL by anonymous user

    Volto is a ReactJS-based frontend for the Plone Content Management System. Versions 16.34.0 and below, 17.0.0 through 17.22.1, 18.0.0 through 18.27.1, and 19.0.0-alpha.1 through 19.0.0-alpha.5, an anonymous user could cause the NodeJS server part of Volto to …

  • High 7.5

    Volto affected by possible DoS by invoking specific URL by anonymous user

    Volto is a React based frontend for the Plone Content Management System. In versions from 19.0.0-alpha.1 to before 19.0.0-alpha.4, 18.0.0 to before 18.24.0, 17.0.0 to before 17.22.1, and prior to 16.34.0, an anonymous user could cause the NodeJS server part o…

  • High 7.5

    plone.rest vulnerable to Denial of Service when ++api++ is used many times

    plone.rest allows users to use HTTP verbs such as GET, POST, PUT, DELETE, etc. in Plone. Starting in the 2.x branch and prior to versions 2.0.1 and 3.0.1, when the `++api++` traverser is accidentally used multiple times in a url, handling it takes increasingl…

  • Low 3.7

    plone.namedfile vulnerable to Stored Cross Site Scripting with SVG images

    plone.namedfile allows users to handle `File` and `Image` fields targeting, but not depending on, Plone Dexterity content. Prior to versions 5.6.1, 6.0.3, 6.1.3, and 6.2.1, there is a stored cross site scripting vulnerability for SVG images. A security hotfix…

  • Medium 5.0

    Improper Authentication in Volto

    Volto is a ReactJS-based frontend for the Plone Content Management System. Between versions 14.0.0-alpha.5 and 15.0.0-alpha.0, a user could have their authentication cookie replaced with an authentication cookie from another user, effectively giving them cont…

  • Medium 6.5

    URL Redirection to Untrusted Site ('Open Redirect') in Products.isurlinportal

    Products.isurlinportal is a replacement for isURLInPortal method in Plone. Versions of Products.isurlinportal prior to 1.2.0 have an Open Redirect vulnerability. Various parts of Plone use the 'is url in portal' check for security, mostly to see if it is safe…