{"id":"CVE-2024-41677","aliases":["GHSA-2rwj-7xq8-4gx4"],"url":"https://o3.security/vulnerability/CVE-2024-41677","summary":"Cross-site Scripting (XSS) vulnerability due to improper HTML escaping in qwik","details":"Qwik is a performance focused javascript framework. A potential mutation XSS vulnerability exists in Qwik for versions up to but not including 1.6.0. Qwik improperly escapes HTML on server-side rendering. It converts strings according to the rules found in the `render-ssr.ts` file. It sometimes causes the situation that the final DOM tree rendered on browsers is different from what Qwik expects on server-side rendering. This may be leveraged to perform XSS attacks, and a type of the XSS is known as mXSS (mutation XSS). This has been resolved in qwik version 1.6.0 and @builder.io/qwik version 1.7.3. All users are advised to upgrade. There are no known workarounds for this vulnerability.","published":"2024-08-06T17:52:14.648Z","modified":"2026-07-15T01:49:13.405933049Z","cvss":{"score":6.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"npm","name":"@builder.io/qwik","fixedVersion":"1.7.3"}],"fix":{"url":"https://github.com/QwikDev/qwik/commit/7e742eb3a1001542d795776c0317d47df8b9d64e","label":"QwikDev/qwik@7e742eb"},"references":[{"type":"WEB","url":"https://github.com/QwikDev/qwik/blob/v1.5.5/packages/qwik/src/core/render/ssr/render-ssr.ts#L1182-L1208"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/41xxx/CVE-2024-41677.json"},{"type":"ADVISORY","url":"https://github.com/QwikDev/qwik/security/advisories/GHSA-2rwj-7xq8-4gx4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-41677"},{"type":"FIX","url":"https://github.com/QwikDev/qwik/commit/7e742eb3a1001542d795776c0317d47df8b9d64e"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:13.405933049Z"}}