The displaySig action in ActionlogController serves signature image files from a private upload directory. The filename parameter from the HTTP route is concatenated directly into a filesystem path with no sanitization, allowing an authenticated attacker to traverse outside the intended directory and read arbitrary files accessible to the web server process.
Reported by https://github.com/securin-public
{
"cwe_ids": [
"CWE-23"
],
"github_reviewed": true,
"github_reviewed_at": "2026-08-28T18:01:32Z",
"nvd_published_at": "2026-07-10T19:17:25Z",
"severity": "HIGH"
}