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MEDIUM severity

CVE-2013-4188 — plone

MEDIUM

CVE-2013-4188 is a medium-severity (CVSS 4.4) CWE-399 vulnerability in plone. A fix is available for plone — see the affected versions and patch details below.

Plone Authenticated Denial of Service vulnerability

Also known asPYSEC-2014-52
Published
Updated
Affected
3 pkgs
Patched
3 / 3
Exploits
None indexed
Exploitation data as of Oct 22, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs71th percentile — riskier than 71% of all scored CVEsHighest risk
0.06%0.66%1.25%1.85%0.6%1.3%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

3 pkgs affected
🐍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

traverser.py in Plone 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 allows remote attackers with administrator privileges to cause a denial of service (infinite loop and resource consumption) via unspecified vectors related to "retrieving information for certain resources."

Affected Packages

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIplone≥ 4.3&&< 4.3.24.3.2pip install --upgrade 'plone==4.3.2'
🐍PyPIplone≥ 4.2&&< 4.2.64.2.6pip install --upgrade 'plone==4.2.6'
🐍PyPIplone≥ 2.1&&< 4.1.14.1.1pip install --upgrade 'plone==4.1.1'

Affected Products

1 product · 52 configurations
Application
ploneplone
52 versions
2.12.1.12.1.22.1.32.1.42.52.5.12.5.22.5.32.5.42.5.53.0

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update plone to 4.3.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-4188 is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

traverser.py in Plone 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 allows remote attackers with administrator privileges to cause a denial of service (infinite loop and resource consumption) via unspecified vectors related to "retrieving information for certain resources."
O3 Security · Impact-Aware SCA

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CVE-2013-4188: plone DoS — Fixed in 4.3.2