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When Vite's HTML transformation is invoked manually via `server.transformIndexHtml`, the original request URL is passed in unmodified, and the `html` being transformed contains inline module scripts (`<script type=\"module\">...</script>`), it is possible to inject arbitrary HTML into the transformed output by supplying a malicious URL query string to `server.transformIndexHtml`. Only apps using `appType: 'custom'` and using the default Vite HTML middleware are affected. The HTML entry must also contain an inline script. The attack requires a user to click on a malicious URL while running the dev server. Restricted files aren't exposed to the attacker. This issue has been addressed in vite@5.0.5, vite@4.5.1, and vite@4.4.12. There are no known workarounds for this vulnerability.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-49293.json","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-49293.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2023-49293","reference_id":"","reference_type":"","scores":[{"value":"0.08295","scoring_system":"epss","scoring_elements":"0.92381","published_at":"2026-05-30T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2023-49293"},{"reference_url":"https://github.com/vitejs/vite","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/vitejs/vite"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2252893","reference_id":"2252893","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2252893"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49293","reference_id":"CVE-2023-49293","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49293"},{"reference_url":"https://github.com/advisories/GHSA-92r3-m2mg-pj97","reference_id":"GHSA-92r3-m2mg-pj97","reference_type":"","scores":[],"url":"https://github.com/advisories/GHSA-92r3-m2mg-pj97"},{"reference_url":"https://github.com/vitejs/vite/security/advisories/GHSA-92r3-m2mg-pj97","reference_id":"GHSA-92r3-m2mg-pj97","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-05-29T13:40:33Z/"}],"url":"https://github.com/vitejs/vite/security/advisories/GHSA-92r3-m2mg-pj97"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/66827?format=json","purl":"pkg:npm/vite@5.0.5","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/vite@5.0.5"}],"aliases":["CVE-2023-49293","GHSA-92r3-m2mg-pj97"],"risk_score":2.8,"exploitability":"0.5","weighted_severity":"5.5","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-qqmk-huxn-kkcq"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/19267?format=json","vulnerability_id":"VCID-s6e9-86vw-kqej","summary":"Improper Access Control\nVite is a frontend tooling framework for javascript. The Vite dev server option `server.fs.deny` can be bypassed on case-insensitive file systems using case-augmented versions of filenames. Notably this affects servers hosted on Windows. This bypass is similar to CVE-2023-34092 -- with surface area reduced to hosts having case-insensitive filesystems. Since `picomatch` defaults to case-sensitive glob matching, but the file server does not discriminate; a block list bypass is possible. By requesting raw filesystem paths using augmented casing, the matcher derived from `config.server.fs.deny` fails to block access to sensitive files. This issue has been addressed in vite@5.0.12, vite@4.5.2, vite@3.2.8, and vite@2.9.17. Users are advised to upgrade. Users unable to upgrade should restrict access to dev servers.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2024-23331","reference_id":"","reference_type":"","scores":[{"value":"0.00479","scoring_system":"epss","scoring_elements":"0.65369","published_at":"2026-05-30T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2024-23331"},{"reference_url":"https://github.com/vitejs/vite","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/vitejs/vite"},{"reference_url":"https://github.com/vitejs/vite/commit/0cd769c279724cf27934b1270fbdd45d68217691","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/vitejs/vite/commit/0cd769c279724cf27934b1270fbdd45d68217691"},{"reference_url":"https://github.com/vitejs/vite/commit/91641c4da0a011d4c5352e88fc68389d4e1289a5","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-01-22T14:54:35Z/"}],"url":"https://github.com/vitejs/vite/commit/91641c4da0a011d4c5352e88fc68389d4e1289a5"},{"reference_url":"https://github.com/vitejs/vite/commit/a26c87d20f9af306b5ce3ff1648be7fa5146c278","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/vitejs/vite/commit/a26c87d20f9af306b5ce3ff1648be7fa5146c278"},{"reference_url":"https://github.com/vitejs/vite/commit/eeec23bbc9d476c54a3a6d36e78455867185a7cb","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/vitejs/vite/commit/eeec23bbc9d476c54a3a6d36e78455867185a7cb"},{"reference_url":"https://vitejs.dev/config/server-options.html#server-fs-deny","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-01-22T14:54:35Z/"}],"url":"https://vitejs.dev/config/server-options.html#server-fs-deny"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-34092","reference_id":"CVE-2023-34092","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-34092"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2024-23331","reference_id":"CVE-2024-23331","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-23331"},{"reference_url":"https://github.com/advisories/GHSA-c24v-8rfc-w8vw","reference_id":"GHSA-c24v-8rfc-w8vw","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-c24v-8rfc-w8vw"},{"reference_url":"https://github.com/vitejs/vite/security/advisories/GHSA-c24v-8rfc-w8vw","reference_id":"GHSA-c24v-8rfc-w8vw","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-01-22T14:54:35Z/"}],"url":"https://github.com/vitejs/vite/security/advisories/GHSA-c24v-8rfc-w8vw"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/67360?format=json","purl":"pkg:npm/vite@5.0.12","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/vite@5.0.12"}],"aliases":["CVE-2024-23331","GHSA-c24v-8rfc-w8vw"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-s6e9-86vw-kqej"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/19803?format=json","vulnerability_id":"VCID-xbcf-jm6w-vyeu","summary":"Vite's `server.fs.deny` did not deny requests for patterns with directories.\n[Vite dev server option](https://vitejs.dev/config/server-options.html#server-fs-deny) `server.fs.deny` did not deny requests for patterns with directories. An example of such a pattern is `/foo/**/*`.","references":[{"reference_url":"https://github.com/vitejs/vite","reference_id":"","reference_type":"","scores":[],"url":"https://github.com/vitejs/vite"},{"reference_url":"https://github.com/vitejs/vite/commit/011bbca350e447d1b499d242804ce62738c12bc0","reference_id":"","reference_type":"","scores":[],"url":"https://github.com/vitejs/vite/commit/011bbca350e447d1b499d242804ce62738c12bc0"},{"reference_url":"https://github.com/vitejs/vite/commit/5a056dd2fc80dbafed033062fe6aaf4717309f48","reference_id":"","reference_type":"","scores":[],"url":"https://github.com/vitejs/vite/commit/5a056dd2fc80dbafed033062fe6aaf4717309f48"},{"reference_url":"https://github.com/vitejs/vite/commit/89c7c645f09d16a38f146ef4a1528f218e844d67","reference_id":"","reference_type":"","scores":[],"url":"https://github.com/vitejs/vite/commit/89c7c645f09d16a38f146ef4a1528f218e844d67"},{"reference_url":"https://github.com/vitejs/vite/commit/96a7f3a41ef2f9351c46f3ab12489bb4efa03cc9","reference_id":"","reference_type":"","scores":[],"url":"https://github.com/vitejs/vite/commit/96a7f3a41ef2f9351c46f3ab12489bb4efa03cc9"},{"reference_url":"https://github.com/vitejs/vite/commit/ba5269cca81de3f5fbb0f49d58a1c55688043258","reference_id":"","reference_type":"","scores":[],"url":"https://github.com/vitejs/vite/commit/ba5269cca81de3f5fbb0f49d58a1c55688043258"},{"reference_url":"https://github.com/vitejs/vite/commit/d2db33f7d4b96750b35370c70dd2c35ec3b9b649","reference_id":"","reference_type":"","scores":[],"url":"https://github.com/vitejs/vite/commit/d2db33f7d4b96750b35370c70dd2c35ec3b9b649"},{"reference_url":"https://github.com/advisories/GHSA-8jhw-289h-jh2g","reference_id":"GHSA-8jhw-289h-jh2g","reference_type":"","scores":[],"url":"https://github.com/advisories/GHSA-8jhw-289h-jh2g"},{"reference_url":"https://github.com/vitejs/vite/security/advisories/GHSA-8jhw-289h-jh2g","reference_id":"GHSA-8jhw-289h-jh2g","reference_type":"","scores":[],"url":"https://github.com/vitejs/vite/security/advisories/GHSA-8jhw-289h-jh2g"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/68430?format=json","purl":"pkg:npm/vite@5.0.13","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/vite@5.0.13"},{"url":"http://public2.vulnerablecode.io/api/packages/68431?format=json","purl":"pkg:npm/vite@5.1.7","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-mfry-5z57-n7ad"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/vite@5.1.7"},{"url":"http://public2.vulnerablecode.io/api/packages/68432?format=json","purl":"pkg:npm/vite@5.2.6","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-qt19-799f-1ue5"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/vite@5.2.6"}],"aliases":["GHSA-8jhw-289h-jh2g"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-xbcf-jm6w-vyeu"}],"fixing_vulnerabilities":[],"risk_score":"4.0","resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/vite@5.0.0"}