CVE-2012-5496

NONECVSS 0.0

0.0

kupu_spellcheck.py in Kupu in Plone before 4.0 allows remote attackers to cause a denial of service (ZServer thread lock) via a crafted URL.

CVSS v3: —
EG Score: —
EPSS: 69.8%
KEV: Not listed

Published

September 30, 2014

Last Modified

May 6, 2026

References (8)

secalert@redhathttp://www.openwall.com/lists/oss-security/2012/11/10/1
secalert@redhathttps://github.com/plone/Products.CMFPlone/blob/4.2.3/docs/CHANGES.txt
secalert@redhathttps://plone.org/products/plone-hotfix/releases/20121106
secalert@redhathttps://plone.org/products/plone/security/advisories/20121106/12
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/11/10/1
af854a3a-2127-422b-91ae-364da2661108https://github.com/plone/Products.CMFPlone/blob/4.2.3/docs/CHANGES.txt
af854a3a-2127-422b-91ae-364da2661108https://plone.org/products/plone-hotfix/releases/20121106
af854a3a-2127-422b-91ae-364da2661108https://plone.org/products/plone/security/advisories/20121106/12

Affected Packages

(1 across 1 ecosystem)

PyPI(1)

Package	Vulnerable range	Fixed in	Dependents
plone	3.2 ... 3.3rc5 (18 versions)	3.3.6	—

Data Freshness Timeline

(refreshed 11× in last 7d / 16× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-21 22:39 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Frequently asked(4)

What is CVE-2012-5496?

CVE-2012-5496 is a none vulnerability published on September 30, 2014. kupu_spellcheck.py in Kupu in Plone before 4.0 allows remote attackers to cause a denial of service (ZServer thread lock) via a crafted URL.

When was CVE-2012-5496 disclosed?

CVE-2012-5496 was first published in the National Vulnerability Database on September 30, 2014, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2012-5496 actively exploited?

CVE-2012-5496 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 69.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2012-5496?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-5496, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2012-5496

📅 Published

🔄 Last Modified

🔗 References (8)