{"cve":"CVE-2009-1840","nvd":{"published":"2009-06-12T21:30:00.420","modified":"2026-06-16T23:08:10.350","status":"Modified","description":"Mozilla Firefox before 3.0.11, Thunderbird, and SeaMonkey do not check content policy before loading a script file into a XUL document, which allows remote attackers to bypass intended access restrictions via a crafted HTML document, as demonstrated by a \"web bug\" in an e-mail message, or web script or an advertisement in a web page.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"references":["http://osvdb.org/55158","http://secunia.com/advisories/35331","http://secunia.com/advisories/35415","http://secunia.com/advisories/35431","http://secunia.com/advisories/35439"],"products":["mozilla:firefox","mozilla:seamonkey","mozilla:thunderbird"],"source":"nvd","synced_at":"2026-10-19T19:54:07.895733559+00:00"},"epss":{"cve":"CVE-2009-1840","score":0.02224,"percentile":0.82702,"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."]}