{"id":"CVE-2026-103592","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-103592","generatedAt":"2026-10-28T03:30:15.565Z","title":"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.","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.","published":"2026-09-30T23:16:59.000Z","lastModified":"2026-10-06T00:16:33.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-348"],"affected":[],"epss":{"score":0.00182,"percentile":0.07711,"date":"2026-10-26","history":[{"date":"2026-10-02","score":0.00182,"percentile":0.07028}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-30T23:16:59.000Z","detail":{"score":"6.9","severity":"MEDIUM","publishedAt":"2026-09-30T23:16:58.963Z"},"summary":"New CVE, medium severity (CVSS 6.9)."}],"references":[{"url":"https://github.com/skipperbent/simple-php-router","source":"disclosure@vulncheck.com"},{"url":"https://github.com/skipperbent/simple-php-router/blob/5.4.1.7/src/Pecee/Http/Middleware/IpRestrictAccess.php","source":"disclosure@vulncheck.com"},{"url":"https://github.com/skipperbent/simple-php-router/blob/5.4.1.7/src/Pecee/Http/Request.php","source":"disclosure@vulncheck.com"},{"url":"https://github.com/skipperbent/simple-php-router/issues/727","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/simple-php-router-through-5.4.1.7-ip-restriction-bypass-via-forwarding-headers","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-103592","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}