# CVE-2015-7315: PYSEC-2026-2964 - Plone unauthorized member addition vulnerability

Source: https://junglewise.ai/threats/cve-2015-7315-plone-unauthorized-member-addition-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-09  
License: CC BY 4.0 with a link back

CVE-2015-7315 · Severity: low · CVSS 3.1 · Published 2026-07-09

Plone unauthorized member addition vulnerability

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

## Quick answers

**Is CVE-2015-7315 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2015-7315 being exploited in the wild.

**How severe is CVE-2015-7315?** Low severity, with a CVSS score of 3.1, published 9 July 2026.

**Which products and versions are affected?** plone (PyPI) ECOSYSTEM:introduced=3.3,last_affected=3.3.6, GIT:introduced=0,fixed=e1d981bfa14b664317285f0f36498f4be4a23406|ECOSYSTEM:introduced=3.3,fixed=4.0a1,introduced=4.0,fixed=4.1a1,introduced=4.1,fixed=4.2a1,introduced=4.2,fixed=4.3a1,introduced=4.3,fixed=4.3.7,introduced=5.0a1,fixed=5.0rc2; products-cmfplone (PyPI) ECOSYSTEM:introduced=3.3.0,fixed=4.3.7, ECOSYSTEM:introduced=3.3.0,fixed=4.3.7,introduced=5.0a1,fixed=5.0rc2.

**Is there a fix for CVE-2015-7315?** Yes. plone (PyPI): upgrade to 5.0rc2 or later; products-cmfplone (PyPI): upgrade to 4.3.7, 5.0rc2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2015-7315?** Check whether you run plone (PyPI) or products-cmfplone (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 5.0rc2 or later

  ```sh
  pip install "plone>=5.0rc2"
  ```

- products-cmfplone (PyPI): upgrade to 4.3.7, 5.0rc2 or later

  ```sh
  pip install "products-cmfplone>=5.0rc2"
  ```


## Affected products

- plone (PyPI) ECOSYSTEM:introduced=3.3,last_affected=3.3.6, GIT:introduced=0,fixed=e1d981bfa14b664317285f0f36498f4be4a23406|ECOSYSTEM:introduced=3.3,fixed=4.0a1,introduced=4.0,fixed=4.1a1,introduced=4.1,fixed=4.2a1,introduced=4.2,fixed=4.3a1,introduced=4.3,fixed=4.3.7,introduced=5.0a1,fixed=5.0rc2
- products-cmfplone (PyPI) ECOSYSTEM:introduced=3.3.0,fixed=4.3.7, ECOSYSTEM:introduced=3.3.0,fixed=4.3.7,introduced=5.0a1,fixed=5.0rc2

## Identifiers

- CVE-2015-7315
- GHSA-984m-rj28-8c6x
- PYSEC-2017-52
- PYSEC-2026-2964

## Related threats

- [PYSEC-2026-2889 - Plone Privilege Escallation](https://junglewise.ai/threats/cve-2020-7938-plone-privilege-escallation)
- [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)
- [PYSEC-2026-2888 - Plone and plone.app.users allow remote authenticated users to modify the properties of arbitrary accounts](https://junglewise.ai/threats/cve-2011-1950-plone-privilege-escalation-in-account-property-modification)