{"id":"CVE-2026-44666","aliases":["EUVD-2026-30480","GHSA-f74g-4wj8-j35h"],"status":"published","title":"HRConvert2: Missing Sanitization enables Unauthenticated Remote Command Execution","description":"HRConvert2 is a self-hosted, drag-and-drop \u0026 nosql file conversion server \u0026 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.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00376,"percentile":0.32006,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2026-05-14T20:32:43Z","modified":"2026-10-28T02:30:31Z","products":[{"vendor":"zelon88","product":"hrconvert2"}],"references":[{"url":"https://github.com/zelon88/HRConvert2/security/advisories/GHSA-f74g-4wj8-j35h","tags":["x_refsource_CONFIRM","exploit","advisory"]},{"url":"https://github.com/zelon88/HRConvert2/releases/tag/v3.3.8","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44666.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44666","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-44666","title":"HRConvert2: Missing Sanitization enables Unauthenticated Remote Command Execution","description":"HRConvert2 is a self-hosted, drag-and-drop \u0026 nosql file conversion server \u0026 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.","status":"published","published":"2026-05-14T20:32:43.49Z","modified":"2026-05-15T13:34:48.461Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"critical","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T13:43:00.288193Z"}],"euvd":[{"id":"EUVD-2026-30480","description":"HRConvert2 is a self-hosted, drag-and-drop \u0026 nosql file conversion server \u0026 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.","status":"published","published":"2026-05-14T20:32:43Z","modified":"2026-05-15T13:34:48Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"critical"}],"updated_at":"2026-11-02T19:04:28.872228Z"}],"nvd":[{"id":"CVE-2026-44666","description":"HRConvert2 is a self-hosted, drag-and-drop \u0026 nosql file conversion server \u0026 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.","status":"published","published":"2026-05-14T21:16:47.37Z","modified":"2026-10-26T14:10:00.13Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:12:19.39893Z"}],"osv":[{"id":"CVE-2026-44666","title":"HRConvert2: Missing Sanitization enables Unauthenticated Remote Command Execution","description":"HRConvert2 is a self-hosted, drag-and-drop \u0026 nosql file conversion server \u0026 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.","status":"published","published":"2026-05-14T20:32:43.49Z","modified":"2026-10-28T02:30:31.497575052Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"critical"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:45:05.172514Z"}]}}