CVE-2011-2528: Plone

High severity, CVSS 7.5. EPSS: 2% chance of exploitation in the next 30 days.

Unspecified vulnerability in (1) Zope 2.12.x before 2.12.19 and 2.13.x before 2.13.8, as used in Plone 4.x and other products, and (2) PloneHotfix20110720 for Plone 3.x allows attackers to gain privileges via unspecified vectors, related to a "highly serious vulnerability." NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-0720.

Affected products

• Plone Plone: version 3.0 only; version 3.0.1 only; version 3.0.2 only; version 3.0.3 only; version 3.0.4 only; version 3.0.5 only; …
• Plone Plone Hotfix 20110720: any version
• Zope Zope: version 2.12.0 only; version 2.12.1 only; version 2.12.2 only; version 2.12.3 only; version 2.12.4 only; version 2.12.5 only; …

Published 2011-07-19. Last modified 2026-06-16.