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MEDIUM severity

CVE-2015-7315 — products-cmfplone

MEDIUMFix: plone/Products.CMFPlone@1845b0a

CVE-2015-7315 is a medium-severity (CVSS 5.9) CWE-284 vulnerability in products-cmfplone. A fix is available for products-cmfplone — see the affected versions and patch details below.

Plone unauthorized member addition vulnerability

Also known asPYSEC-2017-52PYSEC-2026-2964
Published
Updated
Affected
8 pkgs
Patched
2 / 8
Exploits
None indexed
Exploitation data as of Oct 30, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
2.0%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs81th percentile — riskier than 81% of all scored CVEsHighest risk
0.00%0.84%1.68%2.52%0.4%2.0%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

8 pkgs affected
🐍products-cmfplone🐍products-cmfplone🐍plone🐍plone🐍plone🐍plone🐍plone🐍plone

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.0 through 4.3.6, and 5.0rc1 allows remote attackers to add a new member to a Plone site with registration enabled, without acknowledgment of site administrator.

Affected Packages

8 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIproducts-cmfplone≥ 3.3.0&&< 4.3.74.3.7pip install --upgrade 'products-cmfplone==4.3.7'
🐍PyPIproducts-cmfplone≥ 5.0a1&&< 5.0rc25.0rc2pip install --upgrade 'products-cmfplone==5.0rc2'
🐍PyPIplone≥ 3.3No fix
🐍PyPIplone≥ 4.0a1No fix
🐍PyPIplone≥ 4.1a1No fix
🐍PyPIplone≥ 4.2a1No fix

Affected Products

1 product · 40 configurations
Application
ploneplone
40 versions
3.33.3.13.3.23.3.33.3.43.3.53.3.64.04.0.14.0.24.0.34.0.4

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for products-cmfplone, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update products-cmfplone to 4.3.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2015-7315 is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.0 through 4.3.6, and 5.0rc1 allows remote attackers to add a new member to a Plone site with registration enabled, without acknowledgment of site administrator.
O3 Security · Impact-Aware SCA

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CVE-2015-7315: products-cmfplone — Fixed in 4.3.7