{"id":"CVE-2026-100376","revision":"bb59c88c869540a9b5322c6df816f476","records":[{"revision":"bb59c88c869540a9b5322c6df816f476","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-100376","aliases":[],"title":"TemplateSandbox can be abused for XSS by asking another user to preview a page with a certain sandbox prefix","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - TemplateSandbox Extension allows Cross-Site Scripting (XSS).\n\nThis issue affects Mediawiki - TemplateSandbox Extension: from * before 1.46.1, 1.45.5, 1.43.10.","state":0,"publishedAt":"2026-09-25T20:48:53.688+00:00","modifiedAt":"2026-09-26T22:51:18.594+00:00","affected":[{"ecosystem":"Vendor product","name":"Mediawiki - TemplateSandbox Extension","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Wikimedia Foundation\",\n                    \"product\": \"Mediawiki - TemplateSandbox Extension\",\n                    \"repo\": \"https://gerrit.wikimedia.org/g/mediawiki/extensions/TemplateSandbox/+/refs/heads/master\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"*\",\n                            \"lessThan\": \"1.46.1, 1.45.5, 1.43.10\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L","score":4.8,"severity":"MEDIUM"}],"references":["https://phabricator.wikimedia.org/T430596","https://gerrit.wikimedia.org/r/q/I6630b9915f640bf75c8570165eb8728bd7a2c07a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-100376","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-100376","identifiers":["CVE-2026-100376"]},"retained":false,"historicalAffected":[]}],"coverage":[]}