{"cve":"CVE-2011-4591","nvd":{"published":"2012-07-20T10:40:36.173","modified":"2026-06-16T23:35:06.243","status":"Modified","description":"Cross-site scripting (XSS) vulnerability in the print_object function in lib/datalib.php in Moodle 2.0.x before 2.0.6 and 2.1.x before 2.1.3, when a developer debugging script is enabled, allows remote attackers to inject arbitrary web script or HTML via vectors involving object states.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-79"],"references":["http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=187672608ec96659e07f2461b3b83634debd16cb","http://moodle.org/mod/forum/discuss.php?d=191760","https://bugzilla.redhat.com/show_bug.cgi?id=761248","http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=187672608ec96659e07f2461b3b83634debd16cb","http://moodle.org/mod/forum/discuss.php?d=191760"],"products":["moodle:moodle"],"source":"nvd","synced_at":"2026-10-19T20:24:00.973572543+00:00"},"epss":{"cve":"CVE-2011-4591","score":0.01832,"percentile":0.78897,"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."]}