CVE Intelligence

Phpsysinfo vulnerabilities

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Published CVEs affecting Phpsysinfo products: 1 record(s), with severity, exploitation and fixes.

Phpsysinfo 1

Exploited only (KEV) →

CVE-2026-55584 High · 7.5 CWE-290 Aug 28, 2026
phpSysInfo: IP allowlist (PSI_ALLOWED) bypass via spoofed X-Forwarded-For / Client-IP headers
phpSysInfo is a customizable PHP script that displays system information. Prior to 3.4.6, the PSI_ALLOWED access-control check in read_config.php trusts attacker-controlled X-Forwarded-For and Client-IP HTTP headers before REMOTE_ADDR. A remote unauthenticated attacker can supply an allowed address in one of these headers to impersonate a trusted client and access exposed hostname, kernel, CPU, memory, filesystem, and network-interface information. This issue is fixed in version 3.4.6.