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.
{
"github_reviewed": true,
"cwe_ids": [
"CWE-20"
],
"nvd_published_at": null,
"github_reviewed_at": "2020-06-16T22:02:20Z",
"severity": "HIGH"
}