{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103050", "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "state": "PUBLISHED", "assignerShortName": "wikimedia-foundation", "dateReserved": "2026-09-29T22:29:40.415Z", "datePublished": "2026-09-29T23:11:02.272Z", "dateUpdated": "2026-09-29T23:11:02.272Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "shortName": "wikimedia-foundation", "dateUpdated": "2026-09-29T23:11:02.272Z"}, "title": "Stored i18n XSS in MassMessage", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-79", "description": "CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-592", "descriptions": [{"lang": "en", "value": "CAPEC-592 Stored XSS"}]}], "affected": [{"vendor": "The Wikimedia Foundation", "product": "Mediawiki - MassMessage extension", "repo": "https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/MassMessage/+/refs/heads/master", "versions": [{"status": "affected", "version": "0", "lessThan": "1.46.1, 1.45.5, 1.43.10", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - MassMessage extension allows Stored XSS.\n\nThis issue affects Mediawiki - MassMessage extension: before 1.46.1, 1.45.5, 1.43.10.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - MassMessage extension allows Stored XSS.<p>This issue affects Mediawiki - MassMessage extension: before 1.46.1, 1.45.5, 1.43.10.</p>"}]}], "references": [{"url": "https://phabricator.wikimedia.org/T432341", "tags": ["issue-tracking"]}, {"url": "https://gerrit.wikimedia.org/r/c/1346089", "tags": ["mitigation"]}], "credits": [{"lang": "en", "value": "SomeRandomDeveloper", "type": "finder"}, {"lang": "en", "value": "SomeRandomDeveloper", "type": "remediation developer"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Mediawiki - MassMessage extension", "repo": "https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/MassMessage/+/refs/heads/master", "vendor": "The Wikimedia Foundation", "versions": [{"lessThan": "1.46.1, 1.45.5, 1.43.10", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - MassMessage extension allows Stored XSS.\n\nThis issue affects Mediawiki - MassMessage extension: before 1.46.1, 1.45.5, 1.43.10."}], "id": "CVE-2026-103050", "lastModified": "2026-09-30T00:16:35.370", "metrics": {}, "published": "2026-09-30T00:16:35.370", "references": [{"source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "url": "https://gerrit.wikimedia.org/r/c/1346089"}, {"source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "url": "https://phabricator.wikimedia.org/T432341"}], "sourceIdentifier": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "type": "Secondary"}]}

{}

{}