CVE-2016-4003

Name: CVE-2016-4003
Creator: NVD / NIST
Published: 2016-04-12T16:59:04.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 12.02%

Last modified Jun 17, 2026

CVE-2016-4003 is a vulnerability of currently unknown severity. Cross-site scripting (XSS) vulnerability in the URLDecoder function in JRE before 1.8, as used in Apache Struts 2.x before 2.3.28, when using a single byte page encoding, allows remote attackers to inject arbitrary web script or HTML via multi-byte characters in a url-encoded parameter.. EPSS estimates a 12.02% chance of exploitation in the next 30 days.

Description

Cross-site scripting (XSS) vulnerability in the URLDecoder function in JRE before 1.8, as used in Apache Struts 2.x before 2.3.28, when using a single byte page encoding, allows remote attackers to inject arbitrary web script or HTML via multi-byte characters in a url-encoded parameter.

Metrics

EPSS Probability

12.02%

95.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Apache	Struts	>= 2.0.0, <= 2.3.24.1

References

http://struts.apache.org/docs/s2-028.htmlVendor Advisory
http://www.securityfocus.com/bid/86311Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1035268Third Party Advisory, VDB Entry
https://issues.apache.org/jira/browse/WW-4507Vendor Advisory
http://struts.apache.org/docs/s2-028.htmlVendor Advisory
http://www.securityfocus.com/bid/86311Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1035268Third Party Advisory, VDB Entry
https://issues.apache.org/jira/browse/WW-4507Vendor Advisory

Timeline

Published: Apr 12, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-4003?

How severe is CVE-2016-4003?

Severity scoring for CVE-2016-4003 is pending analysis. The EPSS model estimates a 12.02% probability of exploitation in the next 30 days.

How do I fix CVE-2016-4003?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-4003?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST