CVE-2006-1547: Apache Struts 1 ActionForm Denial-of-Service Vulnerability

High severity, CVSS 7.5. Actively exploited: in CISA KEV since 2022-01-21. EPSS: 54.6% chance of exploitation in the next 30 days.

ActionForm in Apache Software Foundation (ASF) Struts before 1.2.9 with BeanUtils 1.7 allows remote attackers to cause a denial of service via a multipart/form-data encoded form with a parameter name that references the public getMultipartRequestHandler method, which provides further access to elements in the CommonsMultipartRequestHandler implementation and BeanUtils.

Affected products

• Apache Struts: before 1.2.9 (fixed in 1.2.9)

Published 2006-03-30. Last modified 2026-06-16.