{"cve":"CVE-2009-4451","nvd":{"published":"2009-12-29T20:41:20.563","modified":"2026-06-16T23:13:41.610","status":"Modified","description":"Unrestricted file upload vulnerability in upper.php in kandalf upper 0.1 allows remote attackers to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in fileup/.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://osvdb.org/61370","http://secunia.com/advisories/37946","http://www.exploit-db.com/exploits/10672","http://osvdb.org/61370","http://secunia.com/advisories/37946"],"products":["php.html:kandalf_upper"],"source":"nvd","synced_at":"2026-10-19T19:55:32.599380760+00:00"},"epss":{"cve":"CVE-2009-4451","score":0.03336,"percentile":0.88642,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}