The provided vulnerability reports (CVE-2020-3719, GHSA-rr59-pjwj-6grj) lack specific technical details about the vulnerable code paths, such as commit diffs, patch descriptions, or explicit function names. While the CWE-89 classification confirms SQL injection, Magento's architecture involves complex query generation across multiple layers (e.g., EAV models, REST/GraphQL APIs, search criteria handlers). Without concrete evidence from patches or exploit analyses, it is not possible to identify specific functions with high confidence. The vulnerability likely stems from improper input sanitization in search or filter logic, but the absence of code-level data prevents precise attribution to particular functions.