Technology · Plone
Plone vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 8 vulnerabilities in Plone: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2021-33507, was published on 9 July 2026.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
About Plone
Open-source Python-based content management system for building web applications and portals.
Latest Plone vulnerabilities
- CVE-2021-33507: PYSEC-2026-2967 - Cross-site scripting in Products.CMFCore, Products.PluggableAuthService, PlonelowCVSS 3.1EPSS 0.8%
- CVE-2011-1950: PYSEC-2026-2888 - Plone and plone.app.users allow remote authenticated users to modify the properties of arbitrary accountslowCVSS 3.1EPSS 2.4%
- CVE-2020-28736: PYSEC-2026-735 - Improper Restriction of XML External Entity Reference in PlonelowCVSS 3.1EPSS 1.5%
- CVE-2021-29002: Plone CMS stored cross-site scripting in site control panellowCVSS 3.1EPSS 0.8%
- CVE-2016-7136: Plone CMS cross-site scripting in formslowCVSS 3EPSS 1.6%
- CVE-2012-5500: Plone cross-site request forgery in batch rename scriptlowCVSS 3.1EPSS 1.1%
- CVE-2012-5494: Plone cross-site scripting in python_scriptslowCVSS 3.1EPSS 1.2%
- CVE-2012-5493: Plone sandbox bypass via gtbn.pylowCVSS 3.1EPSS 1.7%
Most severe Plone vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2011-1950: PYSEC-2026-2888 - Plone and plone.app.users allow remote authenticated users to modify the properties of arbitrary accountslowCVSS 3.1EPSS 2.4%
- CVE-2012-5493: Plone sandbox bypass via gtbn.pylowCVSS 3.1EPSS 1.7%
- CVE-2020-28736: PYSEC-2026-735 - Improper Restriction of XML External Entity Reference in PlonelowCVSS 3.1EPSS 1.5%
- CVE-2012-5494: Plone cross-site scripting in python_scriptslowCVSS 3.1EPSS 1.2%
- CVE-2012-5500: Plone cross-site request forgery in batch rename scriptlowCVSS 3.1EPSS 1.1%
- CVE-2021-33507: PYSEC-2026-2967 - Cross-site scripting in Products.CMFCore, Products.PluggableAuthService, PlonelowCVSS 3.1EPSS 0.8%
- CVE-2021-29002: Plone CMS stored cross-site scripting in site control panellowCVSS 3.1EPSS 0.8%
- CVE-2016-7136: Plone CMS cross-site scripting in formslowCVSS 3EPSS 1.6%
Vulnerabilities per week
Nothing was published in the last eight weeks. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Plone vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/plone)<a href="https://junglewise.ai/threats/technologies/plone"><img src="https://junglewise.ai/threats/technologies/plone/badge.svg" alt="Plone vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/plone.json, and this page as text at https://junglewise.ai/threats/technologies/plone.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Plone vulnerabilities", https://junglewise.ai/threats/technologies/plone, 10 November 2026.