CVE-2026-103592
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductPecee Simple-router
PublishedSep 30, 2026
First seenSep 30, 2026
Weakness typeCWE-348CWE-348
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| pecee simple-router | v ≤ 5.4.1.7 | — |
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