CVE-2015-4148: The do_soap_call function in ext/soap/soap.c in PHP before 5.4.39, 5.5.x before 5.5.23, and 5.6.x before 5....

Security readout for executives and security teams

CVE-2015-4148 is a PHP SOAP flaw that can expose sensitive information when an affected PHP application processes crafted serialized data. The issue affects older PHP 5.4, 5.5, and 5.6 releases before the named fixed versions. No source in the bundle confirms active exploitation. Exposure is most likely in legacy PHP applications using the SOAP extension, especially where SoapClient objects or serialized data can be influenced by untrusted remote input. Modern supported PHP versions should not be affected by this specific issue. Prioritize remediation where legacy PHP SOAP applications are externally reachable or process user-controlled serialized data. Treat this as a legacy exposure cleanup item unless local evidence shows sensitive systems remain affected. Mitigation focus: Upgrade PHP beyond 5.4.39, 5.5.23, or 5.6.7 as applicable.; Prefer a currently supported vendor PHP package, not end-of-life PHP branches.; Audit applications for ext/soap and SoapClient usage with serialized input..

Prepared

Jun 13, 2026, 22:39 UTC (UTC+00:00)

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