MEDIUM 6.9 NVD
CVE-2026-103592
simple-php-router through 5.4.1.7 contains an IP restriction bypass vulnerability in the IpRestrictAccess middleware that allows remote unauthenticated attacker
simple-php-router through 5.4.1.7 contains an IP restriction bypass vulnerability in the IpRestrictAccess middleware that allows remote unauthenticated attackers to bypass IP whitelist and blacklist protections. Attackers can spoof X-Forwarded-For, CF-Connecting-IP, or Client-IP headers to impersonate whitelisted addresses or evade blacklists, gaining access to IP-restricted routes.
References
- https://github.com/skipperbent/simple-php-router
- https://github.com/skipperbent/simple-php-router/blob/5.4.1.7/src/Pecee/Http/Middleware/Ip
- https://github.com/skipperbent/simple-php-router/blob/5.4.1.7/src/Pecee/Http/Request.php
- https://github.com/skipperbent/simple-php-router/issues/727
- https://www.vulncheck.com/advisories/simple-php-router-through-5.4.1.7-ip-restriction-bypa
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-09-30 via NVD.
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