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

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: yes — in CISA KEV since 2022-01-21
EPSS: 54.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2006-03-30 · updated 2026-06-16
Weakness: CWE-749

Description

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

How to fix

Upgrade to a fixed version: Apache Struts 1.2.9. Check the vendor advisory for mitigations.

References

http://issues.apache.org/bugzilla/show_bug.cgi?id=38534
http://lists.suse.com/archive/suse-security-announce/2006-May/0004.html
http://secunia.com/advisories/19493
http://secunia.com/advisories/20117
http://securitytracker.com/id?1015856
http://struts.apache.org/struts-doc-1.2.9/userGuide/release-notes.html
http://www.securityfocus.com/bid/17342
http://www.vupen.com/english/advisories/2006/1205
https://exchange.xforce.ibmcloud.com/vulnerabilities/25613
http://issues.apache.org/bugzilla/show_bug.cgi?id=38534
http://lists.suse.com/archive/suse-security-announce/2006-May/0004.html
http://secunia.com/advisories/19493

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