{"id":"CVE-2026-107845","revision":null,"records":[{"revision":"307a71c8b96e46de8acbdcc95dfb251c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107845","aliases":[],"title":"Contao: Cross-site scripting in the comments bundle","description":"Contao is an Open Source CMS. From version 4.0.0 until 5.3.50 and 5.7.12, an unauthenticated visitor can submit a comment whose email or website metadata is rendered without sufficient attribute and URL encoding by listComments() in comments-bundle/contao/dca/tl_comments.php. When a backend user opens the Comments module, attacker-controlled script can execute in the Contao backend origin under that user's session. Unpublished comments remain visible to moderators, so moderation does not prevent exposure. This issue is fixed in versions 5.3.50 and 5.7.12.","state":0,"publishedAt":"2026-10-09T19:29:55.396+00:00","modifiedAt":"2026-10-09T19:51:45.89+00:00","affected":[{"ecosystem":"Vendor product","name":"contao","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"contao\",\n                    \"product\": \"contao\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 4.0.0, < 5.3.50\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 5.4.0-RC1, < 5.7.12\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","score":9.3,"severity":"CRITICAL"}],"references":["https://github.com/contao/contao/security/advisories/GHSA-628f-v4f6-p37r","https://github.com/contao/contao/commit/22505d5f79bc1a7f52e2cba5fddf6007e1f0408a","https://github.com/contao/contao/releases/tag/5.3.50","https://github.com/contao/contao/releases/tag/5.7.12"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107845","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-107845","identifiers":["CVE-2026-107845"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-10T13:22:12.0568802+00:00","complete":true,"records":1773,"lastAttemptAt":"2026-11-10T13:22:12.0568802+00:00","lastSuccessAt":"2026-11-10T13:22:12.2181268+00:00","error":null,"lastVerifiedAt":"2026-11-10T13:22:12.2181281+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-8859cf40d4337e24bd2f258cc7778fbad01bb24c79d057aaf34cf1dfc6f8917d-3ef8dba92b2d2d637ad17f1bb87302a2f80b86f45060fed26f9ba87e9b3f1461","complete":true,"records":421961,"lastAttemptAt":"2026-11-10T13:21:47.7020436+00:00","lastSuccessAt":"2026-11-10T13:21:47.6260236+00:00","error":null,"lastVerifiedAt":"2026-11-10T13:21:47.7020436+00:00","snapshotPublishedAt":"2026-11-10T12:29:59+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-efc28183efe04e138ba7d91d47b051d0","complete":true,"records":13691,"lastAttemptAt":"2026-11-10T13:22:39.8838724+00:00","lastSuccessAt":"2026-11-10T13:22:39.879+00:00","error":null,"lastVerifiedAt":"2026-11-10T13:22:39.879+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13744,"expectedIdentifiers":13744,"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":"2026-11-10T13:22:12.0568802+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-10T13:22:12.0568802+00:00","lastSuccessAt":"2026-11-10T13:22:12.2192335+00:00","error":null,"lastVerifiedAt":"2026-11-10T13:22:12.219234+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-fce56865ab584da18fe65ffedaec05f5","complete":false,"records":13697,"lastAttemptAt":"2026-11-10T13:22:38.4294414+00:00","lastSuccessAt":"2026-11-10T13:22:38.423+00:00","error":"100 identifier lookups failed; latest failures include request timeout. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-10T13:22:38.423+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13642,"expectedIdentifiers":13744,"failedIdentifiers":100},{"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-cdffb4589856378aa42e8d1bd4a6c74e27a180d8160bf764c44715ef760f0a62","complete":true,"records":9932,"lastAttemptAt":"2026-11-10T13:21:48.828686+00:00","lastSuccessAt":"2026-11-10T00:04:19.8260565+00:00","error":null,"lastVerifiedAt":"2026-11-10T13:21:48.828686+00:00","snapshotPublishedAt":"2026-11-09T23:48:01+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-26503967ae4379db8f374089589d6e03fb15bd31f820c9e992aaf93840c2236c","complete":true,"records":1971,"lastAttemptAt":"2026-11-10T13:21:48.0645605+00:00","lastSuccessAt":"2026-11-09T21:02:20.472473+00:00","error":null,"lastVerifiedAt":"2026-11-10T13:21:48.0645605+00:00","snapshotPublishedAt":"2026-11-09T20:18:18+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-90debfccd5f97608c3e96ebc37b3b03e91c00adb00e581b0f0dcaea693c0d935","complete":true,"records":3074,"lastAttemptAt":"2026-11-10T13:22:12.0183897+00:00","lastSuccessAt":"2026-11-10T13:22:11.8765745+00:00","error":null,"lastVerifiedAt":"2026-11-10T13:22:12.0183897+00:00","snapshotPublishedAt":"2026-11-10T13:03:15+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-86f40cdda9ca36627f818d0cc8237a8a8c7c22cb687d6747a4ea12bded69e17e","complete":true,"records":231599,"lastAttemptAt":"2026-11-10T13:21:48.3696491+00:00","lastSuccessAt":"2026-11-10T11:25:00.8551311+00:00","error":null,"lastVerifiedAt":"2026-11-10T13:21:48.3696491+00:00","snapshotPublishedAt":"2026-11-10T11:03:07+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}