CVE-2011-4462

CVE-2011-4462 is a medium-severity vulnerability in Plone with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Description

Plone 4.1.3 and earlier computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.

Frequently asked questions

What is CVE-2011-4462?
Plone 4.1.3 and earlier computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.
How severe is CVE-2011-4462?
CVE-2011-4462 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-4462 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4462?
CVE-2011-4462 primarily affects Plone. In total, 62 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-4462?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4462 published?
CVE-2011-4462 was published on 2011-12-30 and last updated on 2026-06-16.

References

Affected products (62)

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