CVE-2026-44666 — HRConvert2: Missing Sanitization enables Unauthenticated Remote Command Execution
HRConvert2 is a self-hosted, drag-and-drop & nosql file conversion server & share tool. Prior to 3.3.8, the sanitizeString() function in convertCore.php is missing backtick (`) …
Published: 2026-05-14 · CVSS: 9.3 · CVSS 4.0
HRConvert2 is a self-hosted, drag-and-drop & nosql file conversion server & share tool. Prior to 3.3.8, the sanitizeString() function in convertCore.php is missing backtick (`) and tab (\t) from its strip list. User input then reaches shell_exec(), where the shell interprets these characters and commands within filenames execute. This vulnerability is fixed in 3.3.8.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7