{"cve":"CVE-2011-4305","nvd":{"published":"2012-07-11T10:26:11.097","modified":"2026-06-16T23:34:44.300","status":"Modified","description":"message/refresh.php in Moodle 1.9.x before 1.9.14 allows remote authenticated users to cause a denial of service (infinite request loop) via a URL that specifies a zero wait time for message refreshing.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-189"],"references":["http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=97f258fabb3ebfa7acc7c02cb59de92b01710f99","http://moodle.org/mod/forum/discuss.php?d=188318","https://bugzilla.redhat.com/show_bug.cgi?id=747444","http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=97f258fabb3ebfa7acc7c02cb59de92b01710f99","http://moodle.org/mod/forum/discuss.php?d=188318"],"products":["moodle:moodle"],"source":"nvd","synced_at":"2026-10-19T20:24:00.973572543+00:00"},"epss":{"cve":"CVE-2011-4305","score":0.01919,"percentile":0.79897,"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."]}