{"cve":"CVE-2009-4102","nvd":{"published":"2009-11-29T13:08:29.437","modified":"2026-06-16T23:13:02.540","status":"Modified","description":"Sage 1.4.3 and earlier extension for Firefox performs certain operations with chrome privileges, which allows remote attackers to execute arbitrary commands and perform cross-domain scripting attacks via the description tag of an RSS feed.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://forums.mozillazine.org/viewtopic.php?f=48&t=1603515&start=0","http://jvn.jp/en/jp/JVN99203127/index.html","http://jvndb.jvn.jp/jvndb/JVNDB-2011-000070","http://secunia.com/advisories/37466","http://www.debian.org/security/2009/dsa-1951"],"products":["mozilla:firefox","sage.mozdev:sage"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-4102","score":0.0339,"percentile":0.88807,"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."]}