{"cve":"CVE-2002-0491","nvd":{"published":"2002-08-12T04:00:00.000","modified":"2026-06-16T21:57:32.867","status":"Modified","description":"admin.php in AlGuest 1.0 guestbook checks for the existence of the admin cookie to authenticate the AlGuest administrator, which allows remote attackers to bypass the authentication and gain privileges by setting the admin cookie to an arbitrary value.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://www.iss.net/security_center/static/8623.php","http://www.securityfocus.com/archive/1/263902","http://www.securityfocus.com/bid/4355","http://www.iss.net/security_center/static/8623.php","http://www.securityfocus.com/archive/1/263902"],"products":["alguest:alguest"],"source":"nvd","synced_at":"2026-10-19T19:34:38.930894741+00:00"},"epss":{"cve":"CVE-2002-0491","score":0.03237,"percentile":0.88283,"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."]}