CVE-2026-59978: AdminNeo: version-cache array injection causes persistent denial of service

AdminNeo v5.4.1 gets the latest version from GitHub API in a browser JavaScript function. Version number is then sent by POST request to ?script=version. This endpoint lacks origin validation and accepts POST data from any source. An attacker can POST version[] parameter which PHP converts to an array. On next page load, function rawurlencode() receives this array instead of string and throws TypeError, returning HTTP 500 to all users for the next 24 hours.

Originally reported by @JoyGhoshs in Adminer: https://github.com/vrana/adminer/security/advisories/GHSA-q4f2-39gr-45jh Although the version checking process was modified in AdminNeo, the root cause persisted.