Servers and applications

CVE-2006-1546

Apache Software Foundation (ASF) Struts before 1.2.9 allows remote attackers to bypass validation via a request with a 'org.apache.struts.taglib.html.Constants.CANCEL' parameter, which causes the action to be canceled but would not be detected from applications that do not use the isCancelled check.

Severity: High 7.5
Published: 30 Mar 2006
Last changed: 16 Jun 2026
Added to UpHeron: 1 Nov 2026
Exploit chance: 6.3% in the next 30 daysHigher than 93% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack: Over the network · No login needed
Attacker can: Read some data · Change some data · Slow it down
CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Sources: NVD

Affected software

Software	Affected versions
Apache StrutsServers and applications · `cpe:a:apache:struts`	Every version up to 1.2.8

References

NVD https://nvd.nist.gov/vuln/detail/CVE-2006-1546
CVE.org https://www.cve.org/CVERecord?id=CVE-2006-1546