CVE-2011-4555: Oneclickorgs One Click Orgs

Medium severity, CVSS 4.0. EPSS: 0.9% chance of exploitation in the next 30 days.

One Click Orgs before 1.2.3 does not require unique e-mail addresses for user accounts, which allows remote authenticated users to cause a denial of service (login disruption) or spoof votes or comments by selecting a conflicting e-mail address.

Affected products

• Oneclickorgs One Click Orgs: up to and including 1.2.2; version 1.0.0 only; version 1.0.1 only; version 1.1.0 only; version 1.1.1 only; version 1.2.0 only; …

Published 2011-12-06. Last modified 2026-06-16.