CVE-2012-5491

NONECVSS 0.0

0.0

z3c.form, as used in Plone before 4.2.3 and 4.3 before beta 1, allows remote attackers to obtain the default form field values by leveraging knowledge of the form location and the element id.

CVSS v3: —
EG Score: —
EPSS: 55.1%
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/20121106/07
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/20121106/07

Affected Packages

(1 across 1 ecosystem)

PyPI(1)

Package	Vulnerable range	Fixed in	Dependents
plone	3.2 ... 4.3a2 (66 versions)	4.3b1	—

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-2012-5491?

CVE-2012-5491 is a none vulnerability published on September 30, 2014. z3c.form, as used in Plone before 4.2.3 and 4.3 before beta 1, allows remote attackers to obtain the default form field values by leveraging knowledge of the form location and the element id.

When was CVE-2012-5491 disclosed?

CVE-2012-5491 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-2012-5491 actively exploited?

CVE-2012-5491 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 55.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2012-5491?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-5491, 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-2012-5491

📅 Published

🔄 Last Modified

🔗 References (8)