In Spring Framework versions 5.3.0 - 5.3.18, 5.2.0 - 5.2.20, and older unsupported versions, the patterns for disallowedFields on a DataBinder are case sensitive which means a field is not effectively protected unless it is listed with both upper and lower case for the first character of the field, including upper and lower case for the first character of all nested fields within the property path. Versions 5.3.19 and 5.2.21 contain a patch for this issue.
github.com/spring-projects/spring-framework
github.com/spring-projects/spring-framework/commit/833e750175349ab4fd502109a8b41af77e25cdea
github.com/spring-projects/spring-framework/commit/a7cf19cec5ebd270f97a194d749e2d5701ad2ab7
nvd.nist.gov/vuln/detail/CVE-2022-22968
security.netapp.com/advisory/ntap-20220602-0004
tanzu.vmware.com/security/cve-2022-22968
www.oracle.com/security-alerts/cpujul2022.html