{"cve":"CVE-2011-4718","nvd":{"published":"2013-08-13T15:04:18.497","modified":"2026-06-16T23:35:17.930","status":"Modified","description":"Session fixation vulnerability in the Sessions subsystem in PHP before 5.5.2 allows remote attackers to hijack web sessions by specifying a session ID.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"references":["http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=169b78eb79b0e080b67f9798708eb3771c6d0b2f","http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=25e8fcc88fa20dc9d4c47184471003f436927cde","https://bugs.php.net/bug.php?id=60491","https://wiki.php.net/rfc/strict_sessions","http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=169b78eb79b0e080b67f9798708eb3771c6d0b2f"],"products":["php:php"],"source":"nvd","synced_at":"2026-10-19T20:29:16.037019470+00:00"},"epss":{"cve":"CVE-2011-4718","score":0.03616,"percentile":0.89503,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}