CVE-2004-1064: The safe mode checks in PHP 4.x to 4.3.9 and PHP 5.x to 5.0.2 truncate the file path before passing the dat...

Security readout for executives and security teams

This CVE concerns very old PHP 4 and PHP 5 releases where safe mode file-path checks could be bypassed. In business terms, a legacy PHP host relying on safe mode for isolation may not enforce intended file access limits. Evidence is dated and disputed, so urgency depends on whether these obsolete PHP versions still exist. Exposure is most likely on legacy systems still running PHP 4.x through 4.3.9 or PHP 5.x through 5.0.2, especially shared-hosting or application environments that depended on PHP safe mode for file access boundaries. Treat this as a legacy exposure discovery item, not a confirmed current crisis. If affected PHP versions are internet-facing or used for tenant isolation, prioritize migration or decommissioning because the runtime family is obsolete and evidence around this CVE is disputed. Mitigation focus: Inventory any remaining PHP 4.x and early PHP 5.x deployments.; Check PHP and operating-system vendor advisories before choosing a fix.; Apply supported vendor packages where still available for legacy systems..

Prepared

Jun 30, 2026, 02:08 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.