{"id":"MAL-2026-16363","revision":null,"records":[{"revision":"a4e089b708f3497eb3844382b6d86a03","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"MAL-2026-16363","aliases":[],"title":"Malicious code in blue-string-formatter-utilss (npm)","description":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (de9e55c734c18f91b4b3a043dd6539097aa4e57056ff9dca6df1a9d3a3631c25)\nThe package advertises itself as string-formatting utilities but ships no formatter code. Its main entry `payload.js` is an IIFE that creates a `<script>` element with `src='https://xss.report/c/k3rne111'` and appends it to `document.body`, causing an attacker-controlled remote script to be fetched and executed whenever the module is loaded in a DOM context. xss.report is a known XSS payload-delivery service. The name-versus-behavior mismatch (a 'string formatter' whose only behavior is a remote script loader) is a typosquat cover story rather than legitimate functionality.\n","state":0,"publishedAt":"2026-09-21T19:48:44+00:00","modifiedAt":"2026-09-21T20:30:13.9160889+00:00","affected":[{"ecosystem":"npm","name":"blue-string-formatter-utilss","ranges":[],"versions":["1.2.0"],"rawVersionEvidence":null}],"metrics":[],"references":["https://www.npmjs.com/package/blue-string-formatter-utilss/v/1.2.0"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-16363","license":"OSV · upstream source license applies","key":"osv:MAL-2026-16363","identifiers":["MAL-2026-16363"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-12T23:19:15.9590640+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-12T23:19:15.959064+00:00","lastSuccessAt":"2026-11-12T23:19:16.1249039+00:00","error":null,"lastVerifiedAt":"2026-11-12T23:19:16.1249085+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-64752486c567b55b31fb0d7225f5222bcd0019564ac0ac5f0649e242c7b19299-444fbca434d6d78ca298b98e326f006793c8bfba8d8449559c252c7bd5d43b97","complete":true,"records":424892,"lastAttemptAt":"2026-11-12T23:16:32.1805379+00:00","lastSuccessAt":"2026-11-12T23:16:31.3274301+00:00","error":null,"lastVerifiedAt":"2026-11-12T23:16:32.1805379+00:00","snapshotPublishedAt":"2026-11-12T22:20:38+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-18b6e2de72f046b9ae68d900992927cf","complete":true,"records":13786,"lastAttemptAt":"2026-11-12T23:20:07.0132813+00:00","lastSuccessAt":"2026-11-12T23:20:07.008+00:00","error":null,"lastVerifiedAt":"2026-11-12T23:20:07.008+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13839,"expectedIdentifiers":13839,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-12T23:19:15.9590640+00:00","complete":true,"records":1123,"lastAttemptAt":"2026-11-12T23:19:15.959064+00:00","lastSuccessAt":"2026-11-12T23:19:16.1261415+00:00","error":null,"lastVerifiedAt":"2026-11-12T23:19:16.1261418+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-c602031ad3784e46b459ac5b8ed0c456","complete":false,"records":13781,"lastAttemptAt":"2026-11-12T23:19:52.2497266+00:00","lastSuccessAt":"2026-11-12T23:19:52.247+00:00","error":null,"lastVerifiedAt":"2026-11-12T23:19:52.247+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13830,"expectedIdentifiers":13839,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-93e76d404e1aeb6a7e8902f5ffa06211fc86dea3b1958e297abb2668aa5e6e8c","complete":true,"records":9952,"lastAttemptAt":"2026-11-12T23:19:15.8042075+00:00","lastSuccessAt":"2026-11-12T23:19:15.5239119+00:00","error":null,"lastVerifiedAt":"2026-11-12T23:19:15.8042075+00:00","snapshotPublishedAt":"2026-11-12T23:03:02+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-4d60731753a2f72e455d1086e7203d0ef10843936dcc1cf2b45135e2caa204b0","complete":true,"records":2012,"lastAttemptAt":"2026-11-12T23:16:32.3274083+00:00","lastSuccessAt":"2026-11-12T18:16:50.7862525+00:00","error":null,"lastVerifiedAt":"2026-11-12T23:16:32.3274083+00:00","snapshotPublishedAt":"2026-11-12T17:48:11+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-20d1a8ab073a1c13ab2143dbcadb34ebb8edf1e18e16482b448513662c3d1e12","complete":true,"records":3127,"lastAttemptAt":"2026-11-12T23:19:15.9196655+00:00","lastSuccessAt":"2026-11-12T22:18:31.0338213+00:00","error":null,"lastVerifiedAt":"2026-11-12T23:19:15.9196655+00:00","snapshotPublishedAt":"2026-11-12T22:18:06+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-9968eeb70b2f77fc15916697fe5c77d3aa6cdbb4b21de3dc236dafb289854aa5","complete":true,"records":231735,"lastAttemptAt":"2026-11-12T23:19:03.9300655+00:00","lastSuccessAt":"2026-11-12T23:19:02.2755063+00:00","error":null,"lastVerifiedAt":"2026-11-12T23:19:03.9300655+00:00","snapshotPublishedAt":"2026-11-12T22:47:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}