Vendor
Plone vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 12 vulnerabilities in Plone: 0 in the last 7 days and 3 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. 2 technologies have a page of their own.
- Last 7 days
- 0
- Last 90 days
- 3
- Critical, all time
- 0
- Exploited in the wild
- 0
About Plone
An open-source content management system (CMS) community and foundation.
Plone technologies
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-2025-61668: Plone Volto denial of service via specific URLmediumCVSS 4EPSS 0.4%
- CVE-2025-58047: Plone Volto denial-of-service by specific URLlowCVSS 3.1EPSS 0.6%
- CVE-2022-24740: Plone Volto auth token swap due to outdated react-cookielowCVSS 3.1EPSS 0.6%
- CVE-2021-29002: PYSEC-2021-889 - A stored cross-site scripting (XSS) vulnerability in Plone CMS 5.2.3 exists in site-controlpanel via the…lowCVSS 3.1EPSS 0.8%
- CVE-2009-0662: Plone Products.PlonePAS improper authentication in login formmediumCVSS 6EPSS 1.0%
- CVE-2016-7136: PYSEC-2017-59 - z3c.form in Plone CMS 5.x through 5.0.6 and 4.x through 4.3.11 allows remote attackers to conduct…lowCVSS 3EPSS 1.6%
- CVE-2012-5500: PYSEC-2014-42 - The batch id change script (renameObjectsByPaths.py) in Plone before 4.2.3 and 4.3 before beta 1 allows…lowCVSS 3.1EPSS 1.1%
- CVE-2012-5494: PYSEC-2014-36 - Cross-site scripting (XSS) vulnerability in python_scripts.py in Plone before 4.2.3 and 4.3 before beta 1…lowCVSS 3.1EPSS 1.2%
- CVE-2012-5493: PYSEC-2014-35 - gtbn.py in Plone before 4.2.3 and 4.3 before beta 1 allows remote authenticated users with certain…lowCVSS 3.1EPSS 1.7%
Most severe Plone vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2009-0662: Plone Products.PlonePAS improper authentication in login formmediumCVSS 6EPSS 1.0%
- CVE-2025-61668: Plone Volto denial of service via specific URLmediumCVSS 4EPSS 0.4%
- 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: PYSEC-2014-35 - gtbn.py in Plone before 4.2.3 and 4.3 before beta 1 allows remote authenticated users with certain…lowCVSS 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: PYSEC-2014-36 - Cross-site scripting (XSS) vulnerability in python_scripts.py in Plone before 4.2.3 and 4.3 before beta 1…lowCVSS 3.1EPSS 1.2%
- CVE-2012-5500: PYSEC-2014-42 - The batch id change script (renameObjectsByPaths.py) in Plone before 4.2.3 and 4.3 before beta 1 allows…lowCVSS 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: PYSEC-2021-889 - A stored cross-site scripting (XSS) vulnerability in Plone CMS 5.2.3 exists in site-controlpanel via the…lowCVSS 3.1EPSS 0.8%
- CVE-2025-58047: Plone Volto denial-of-service by specific URLlowCVSS 3.1EPSS 0.6%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 1 | 0 | |
| 6 Jul 2026 | 2 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 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 |
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/vendors/plone.json, 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/vendors/plone, 26 September 2026.