{"id":"CVE-2026-61453","revision":null,"records":[{"revision":"f4067f3190b245d9b10af8c9f36575b8","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-61453","aliases":[],"title":"Grav before 2.0.1 XSS via Twig String Concatenation","description":"Grav v2.0.0 contains a cross-site scripting vulnerability (fixed in 2.0.1). The XSS blueprint validator (Security::detectXss()) runs on raw page content before Twig processing. When Twig content processing is enabled (twig_content.process_enabled: true), an attacker with page-write API permission can use Twig's string concatenation operator (~) to dynamically construct event handler names, dangerous tag names, or dangerous protocols at render time (e.g. {% set x = \"on\" ~ \"error\" %}). The validator sees only the harmless Twig expression and allows the content, but after Twig rendering the output (rendered via {{ page.content|raw }}) contains an active payload such as <img src=1 onerror=alert(1)>, executing arbitrary JavaScript in visitors' browsers.","state":0,"publishedAt":"2026-07-15T11:25:45.83+00:00","modifiedAt":"2026-10-08T15:23:35.72+00:00","affected":[{"ecosystem":"Vendor product","name":"grav","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"getgrav\",\n                    \"product\": \"grav\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"2.0.1\"\n                        },\n                        {\n                            \"version\": \"2.0.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:composer/getgrav/grav\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","score":5.1,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1,"severity":"MEDIUM"}],"references":["https://github.com/getgrav/grav/security/advisories/GHSA-2c4f-86xc-cr74","https://www.vulncheck.com/advisories/grav-before-xss-via-twig-string-concatenation"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-61453","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-61453","identifiers":["CVE-2026-61453"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-10T19:23:59.9183258+00:00","complete":true,"records":1773,"lastAttemptAt":"2026-11-10T19:23:59.9183258+00:00","lastSuccessAt":"2026-11-10T19:24:00.2370482+00:00","error":null,"lastVerifiedAt":"2026-11-10T19:24:00.2370549+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-f2f4ba314860e9e17a66947505579ed713f511b53a4762548045095e6e99afbd","complete":true,"records":422304,"lastAttemptAt":"2026-11-10T19:21:29.2484141+00:00","lastSuccessAt":"2026-11-10T19:21:28.9991659+00:00","error":null,"lastVerifiedAt":"2026-11-10T19:21:29.2484141+00:00","snapshotPublishedAt":"2026-11-10T18:26:14+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-acbb624a79c244aa868394151a25f053","complete":true,"records":13704,"lastAttemptAt":"2026-11-10T19:24:02.5081725+00:00","lastSuccessAt":"2026-11-10T18:24:12.001+00:00","error":null,"lastVerifiedAt":"2026-11-10T18:24:12.001+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13758,"expectedIdentifiers":13758,"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":"2026-11-10T19:23:59.9183258+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-10T19:23:59.9183258+00:00","lastSuccessAt":"2026-11-10T19:24:00.2381624+00:00","error":null,"lastVerifiedAt":"2026-11-10T19:24:00.2381812+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-4459456b8f8c43778c308d7de0a43211","complete":true,"records":13710,"lastAttemptAt":"2026-11-10T19:24:01.780186+00:00","lastSuccessAt":"2026-11-10T18:24:11.141+00:00","error":null,"lastVerifiedAt":"2026-11-10T18:24:11.141+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13758,"expectedIdentifiers":13758,"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-50a085e5b7a5d1546eabdb7e52fab85d658afa8554d3cf95a0891c49d83f2979","complete":true,"records":9935,"lastAttemptAt":"2026-11-10T19:23:59.6188503+00:00","lastSuccessAt":"2026-11-10T16:25:20.0114252+00:00","error":null,"lastVerifiedAt":"2026-11-10T19:23:59.6188503+00:00","snapshotPublishedAt":"2026-11-10T16:18:10+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":"2026-11-10T19:21:29.467842+00:00","lastSuccessAt":"2026-11-09T21:02:20.472473+00:00","error":null,"lastVerifiedAt":"2026-11-10T19:21:29.467842+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-df497239f2f75af38e095cb498791dad4044a8a9a7f5f0ee6008bb732579ab9d","complete":true,"records":3081,"lastAttemptAt":"2026-11-10T19:23:59.7538509+00:00","lastSuccessAt":"2026-11-10T14:21:34.3717399+00:00","error":null,"lastVerifiedAt":"2026-11-10T19:23:59.7538509+00:00","snapshotPublishedAt":"2026-11-10T14:18:07+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-da8f4500acb46c1f6ac483c7f26bcf8f23ffed08d67c9622553c8424a369b040","complete":true,"records":231620,"lastAttemptAt":"2026-11-10T19:23:59.4861543+00:00","lastSuccessAt":"2026-11-10T19:23:57.9397379+00:00","error":null,"lastVerifiedAt":"2026-11-10T19:23:59.4861543+00:00","snapshotPublishedAt":"2026-11-10T18:33:35+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}