CVE-2011-0447: n/a vulnerability

CVE-2011-0447: Ruby on Rails 2.1.x, 2.2.x, and 2.3.x before 2.3.11, and 3.x before 3.0.4, does not properly validate HTTP...

Ruby on Rails 2.1.x, 2.2.x, and 2.3.x before 2.3.11, and 3.x before 3.0.4, does not properly validate HTTP requests that contain an X-Requested-With header, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via forged (1) AJAX or (2) API requests that leverage "combinations of browser plugins and HTTP redirects," a related issue to CVE-2011-0696.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 21:51 UTC (UTC+00:00)

Security readout for executives and security teams

Older Ruby on Rails apps could be tricked into accepting forged AJAX or API requests despite CSRF protections. Abuse depends on a victim browser/session context, but successful attacks could trigger unintended authenticated actions in affected applications. Exposure is mainly legacy Ruby on Rails applications still running the affected branches, especially public or internal apps with authenticated state-changing actions protected by Rails CSRF controls. Treat as a legacy application risk. It is not KEV-listed in the bundle, but affected Rails versions are very old and should be upgraded or isolated because CSRF can alter business data through authenticated users. Mitigation focus: Upgrade Rails 2.3.x to 2.3.11 or later.; Upgrade Rails 3.x to 3.0.4 or later.; Check distro advisories for packaged Rails fixes..

Prepared: Jun 27, 2026, 18:32 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Feb 14, 2011, 20:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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