In Apache Struts 2.3.7 through 2.3.33 and 2.5 through 2.5.12, if an application allows entering a URL in a form field and built-in URLValidator is used, it is possible to prepare a special URL which will be used to overload server process when performing validation of the URL. NOTE: this vulnerability exists because of an incomplete fix for S2-047 / CVE-2017-7672.

Affected Packages

Maven org.apache.struts:struts2-core

Affected versions: 2.3.7 (fixed in 2.3.34)

Maven org.apache.struts:struts2-core

Affected versions: 2.5.0 (fixed in 2.5.13)

Related CVEs

CVE-2017-9804

Key Information

GHSA ID

GHSA-x5x7-3v85-wpc4

Published

October 16, 2018 7:37 PM

Last Modified

January 4, 2024 11:26 PM

CVSS Score

7.5 /10

Primary Ecosystem

Maven

Primary Package

org.apache.struts:struts2-core

GitHub Reviewed

✓ Yes

Dataset

Last updated: July 28, 2025 6:37 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.