{"cve":"CVE-2012-1172","nvd":{"published":"2012-05-24T00:55:02.507","modified":"2026-06-16T23:39:10.930","status":"Modified","description":"The file-upload implementation in rfc1867.c in PHP before 5.4.0 does not properly handle invalid [ (open square bracket) characters in name values, which makes it easier for remote attackers to cause a denial of service (malformed $_FILES indexes) or conduct directory traversal attacks during multi-file uploads by leveraging a script that lacks its own filename restrictions.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://isisblogs.poly.edu/2011/08/11/php-not-properly-checking-params/","http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html","http://lists.fedoraproject.org/pipermail/package-announce/2012-May/080037.html","http://lists.fedoraproject.org/pipermail/package-announce/2012-May/080041.html","http://lists.fedoraproject.org/pipermail/package-announce/2012-May/080070.html"],"products":["php:php"],"source":"nvd","synced_at":"2026-10-19T20:24:00.973572543+00:00"},"epss":{"cve":"CVE-2012-1172","score":0.06195,"percentile":0.93507,"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."]}