Security readout for executives and security teams
This issue affects legacy Plone sites using Kupu before Plone 4.0. A remote attacker could trigger a denial of service by causing a ZServer thread lock through kupu_spellcheck.py. The business impact is availability loss, not documented data theft or code execution. Exposure is most likely on internet-facing legacy Plone deployments earlier than 4.0 that include Kupu spellcheck functionality. Modern Plone deployments or systems without this component are not shown as affected by the provided sources. Treat this as a legacy availability risk. Prioritize if old Plone systems are internet-facing or business-critical; otherwise handle through normal legacy remediation and monitoring. Mitigation focus: Upgrade affected Plone deployments to 4.0 or later where feasible.; Review and apply Plone's 20121106 hotfix guidance for legacy systems.; Restrict public access to affected legacy Plone administrative or editing surfaces..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2012-5496 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/plone/Products.CMFPlone/blob/4.2.3/docs/CHANGES.txtCVE reference · x_refsource_CONFIRM
- https://plone.org/products/plone-hotfix/releases/20121106CVE reference · x_refsource_CONFIRM
- https://plone.org/products/plone/security/advisories/20121106/12CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.