{"cve":"CVE-2013-4200","nvd":{"published":"2014-01-21T16:06:19.670","modified":"2026-06-16T23:56:48.183","status":"Modified","description":"The isURLInPortal method in the URLTool class in in_portal.py in Plone 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 treats URLs starting with a space as a relative URL, which allows remote attackers to bypass the allow_external_login_sites filtering property,  redirect users to arbitrary web sites, and conduct phishing attacks via a space before a URL in the \"next\" parameter to acl_users/credentials_cookie_auth/require_login.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"references":["http://plone.org/products/plone-hotfix/releases/20130618","http://plone.org/products/plone/security/advisories/20130618-announcement","http://www.openwall.com/lists/oss-security/2013/08/01/2","http://www.securityfocus.com/archive/1/530787/100/0/threaded","https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-4200"],"products":["plone:plone"],"source":"nvd","synced_at":"2026-10-19T20:32:06.812358378+00:00"},"epss":{"cve":"CVE-2013-4200","score":0.02222,"percentile":0.82686,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-56p3-rrp4-2j82","url":"https://osv.dev/vulnerability/GHSA-56p3-rrp4-2j82","summary":"Plone Open Redirection vulnerability via next parameter","modified":"2024-10-15T17:23:49.713757Z","packages":[{"ecosystem":"PyPI","name":"plone","purl":"pkg:pypi/plone","ranges":[">=2.1 <4.1.1"],"fixed":["4.1.1"]},{"ecosystem":"PyPI","name":"plone","purl":"pkg:pypi/plone","ranges":[">=4.2 <4.2.6"],"fixed":["4.2.6"]},{"ecosystem":"PyPI","name":"plone","purl":"pkg:pypi/plone","ranges":[">=4.3 <4.3.2"],"fixed":["4.3.2"]}]},{"id":"PYSEC-2014-64","url":"https://osv.dev/vulnerability/PYSEC-2014-64","summary":"","modified":"2026-06-10T17:01:30.316640739Z","packages":[{"ecosystem":"PyPI","name":"plone","purl":"pkg:pypi/plone","ranges":[">=2.1 <4.1.1",">=4.2 <4.2.6",">=4.3 <4.3.2"],"fixed":["4.1.1","4.2.6","4.3.2"]}]}],"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."]}