# CVE-2011-4030: PYSEC-2026-897 - Plone anonymous access to sub-objects in CMFEditions where KwAsAttributes classes were publishable

Source: https://junglewise.ai/threats/cve-2011-4030-plone-anonymous-access-to-sub-objects-in-cmfeditions-where  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-06  
License: CC BY 4.0 with a link back

CVE-2011-4030 · Severity: info · Published 2026-07-06

Plone anonymous access to sub-objects in CMFEditions where KwAsAttributes classes were publishable

Technologies: [plone (PyPI)](https://junglewise.ai/threats/technologies/pypi-plone). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2011-4030 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2011-4030 being exploited in the wild.

**How severe is CVE-2011-4030?** Informational severity, published 6 July 2026.

**Which products and versions are affected?** plone (PyPI) ECOSYSTEM:introduced=4.0,fixed=4.0.10, ECOSYSTEM:introduced=4.0,fixed=4.0.10,introduced=4.1,fixed=4.1.1,introduced=4.2a1,fixed=4.2a3.

**Is there a fix for CVE-2011-4030?** Yes. plone (PyPI): upgrade to 4.0.10, 4.2a3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2011-4030?** Check whether you run plone (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- plone (PyPI): upgrade to 4.0.10, 4.2a3 or later

  ```sh
  pip install "plone>=4.2a3"
  ```


## Affected products

- plone (PyPI) ECOSYSTEM:introduced=4.0,fixed=4.0.10, ECOSYSTEM:introduced=4.0,fixed=4.0.10,introduced=4.1,fixed=4.1.1,introduced=4.2a1,fixed=4.2a3

## Identifiers

- CVE-2011-4030
- GHSA-pwgm-jvqv-6v8p
- PYSEC-2026-897

## Related threats

- [PYSEC-2026-2889 - Plone Privilege Escallation](https://junglewise.ai/threats/cve-2020-7938-plone-privilege-escallation)
- [PYSEC-2026-2964 - Plone unauthorized member addition vulnerability](https://junglewise.ai/threats/cve-2015-7315-plone-unauthorized-member-addition-vulnerability)
- [PYSEC-2026-2962 - Products.CMFPlone XSS in profile home_page property](https://junglewise.ai/threats/cve-2017-1000482-products-cmfplone-xss-in-profile-home-page-property)
- [PYSEC-2026-2963 - Products.CMFPlone Open Redirect Vulnerability](https://junglewise.ai/threats/cve-2017-1000481-products-cmfplone-open-redirect-vulnerability)
- [PYSEC-2026-2967 - Cross-site scripting in Products.CMFCore, Products.PluggableAuthService, Plone](https://junglewise.ai/threats/cve-2021-33507-plone-reflected-cross-site-scripting-vulnerability)