The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.
{ "nvd_published_at": "2022-04-12T16:15:00Z", "cwe_ids": [ "CWE-917" ], "severity": "CRITICAL", "github_reviewed": true, "github_reviewed_at": "2022-04-22T20:30:35Z" }