_get_all_file_server_paths.ajax.php (aka get_all_file_server_paths.ajax.php) in MFScripts YetiShare 3.5.2 through 4.5.3 does not sanitize or encode the output from the fileIds parameter on the page, which would allow an attacker to input HTML or execute scripts on the site, aka XSS.
Severity
CVSS 3.1
6.1 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)