The package svelte before 3.49.0 is vulnerable to Cross-site Scripting (XSS) due to improper input sanitization and to improper escape of attributes when using objects during SSR (Server-Side Rendering). Exploiting this vulnerability is possible via objects with a custom toString() function.
References:GSA_kwCzR0hTQS13djhxLXI5MzItOGhjN84AAtWH
Svelte vulnerable to XSS when using objects during server-side rendering
Affected Packages | Affected Versions | Fixed Versions | |
---|---|---|---|
npm:svelte | < 3.49.0 | 3.49.0 | |
Affected Version RangesAll affected versions0.0.1, 0.0.2, 0.1.0, 0.1.1, 0.2.0, 0.2.1, 0.2.2, 0.3.0, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.3.0, 1.3.1, 1.4.0, 1.5.0, 1.6.0, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.6.5, 1.6.6, 1.6.7, 1.6.8, 1.6.9, 1.6.10, 1.6.11, 1.7.0, 1.7.1, 1.8.0, 1.8.1, 1.9.0, 1.9.1, 1.10.0, 1.10.1, 1.10.2, 1.10.3, 1.11.0, 1.11.1, 1.11.2, 1.11.3, 1.11.4, 1.12.0, 1.12.1, 1.13.0, 1.13.1, 1.13.2, 1.13.3, 1.13.4, 1.13.5, 1.13.6, 1.13.7, 1.14.0, 1.14.1, 1.15.0, 1.15.1, 1.16.0, 1.17.0, 1.17.1, 1.17.2, 1.18.0, 1.18.1, 1.18.2, 1.19.0, 1.19.1, 1.20.0, 1.20.1, 1.20.2, 1.21.0, 1.22.0, 1.22.1, 1.22.2, 1.22.3, 1.22.4, 1.22.5, 1.23.0, 1.23.1, 1.23.2, 1.23.3, 1.23.4, 1.24.0, 1.25.0, 1.25.1, 1.26.0, 1.26.1, 1.26.2, 1.27.0, 1.28.0, 1.28.1, 1.29.0, 1.29.1, 1.29.2, 1.29.3, 1.30.0, 1.31.0, 1.32.0, 1.33.0, 1.34.0, 1.35.0, 1.36.0, 1.37.0, 1.38.0, 1.39.0, 1.39.1, 1.39.2, 1.39.3, 1.39.4, 1.40.0, 1.40.1, 1.40.2, 1.41.0, 1.41.1, 1.41.2, 1.41.3, 1.41.4, 1.42.0, 1.42.1, 1.43.0, 1.43.1, 1.44.0, 1.44.1, 1.44.2, 1.45.0, 1.46.0, 1.46.1, 1.47.0, 1.47.1, 1.47.2, 1.48.0, 1.49.0, 1.49.1, 1.49.2, 1.49.3, 1.50.0, 1.50.1, 1.51.0, 1.51.1, 1.52.0, 1.53.0, 1.54.0, 1.54.1, 1.54.2, 1.55.0, 1.55.1, 1.56.0, 1.56.1, 1.56.2, 1.56.3, 1.56.4, 1.57.0, 1.57.1, 1.57.2, 1.57.3, 1.57.4, 1.58.0, 1.58.1, 1.58.2, 1.58.3, 1.58.4, 1.58.5, 1.59.0, 1.60.0, 1.60.1, 1.60.2, 1.60.3, 1.61.0, 1.62.0, 1.63.0, 1.63.1, 1.64.0, 1.64.1, 2.0.0, 2.1.0, 2.1.1, 2.2.0, 2.3.0, 2.4.0, 2.4.1, 2.4.2, 2.4.3, 2.4.4, 2.5.0, 2.5.1, 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5, 2.6.6, 2.7.0, 2.7.1, 2.7.2, 2.8.0, 2.8.1, 2.9.0, 2.9.1, 2.9.2, 2.9.3, 2.9.4, 2.9.5, 2.9.6, 2.9.7, 2.9.8, 2.9.9, 2.9.10, 2.9.11, 2.10.0, 2.10.1, 2.11.0, 2.12.0, 2.12.1, 2.13.0, 2.13.1, 2.13.2, 2.13.3, 2.13.4, 2.13.5, 2.14.0, 2.14.1, 2.14.2, 2.14.3, 2.15.0, 2.15.1, 2.15.2, 2.15.3, 2.16.0, 2.16.1, 3.0.0, 3.0.1, 3.1.0, 3.2.0, 3.2.1, 3.2.2, 3.3.0, 3.4.0, 3.4.1, 3.4.2, 3.4.3, 3.4.4, 3.5.0, 3.5.1, 3.5.2, 3.5.3, 3.5.4, 3.6.0, 3.6.1, 3.6.2, 3.6.3, 3.6.4, 3.6.5, 3.6.6, 3.6.7, 3.6.8, 3.6.9, 3.6.10, 3.6.11, 3.7.0, 3.7.1, 3.8.0, 3.8.1, 3.9.0, 3.9.1, 3.9.2, 3.10.0, 3.10.1, 3.11.0, 3.12.0, 3.12.1, 3.13.0, 3.14.0, 3.14.1, 3.15.0, 3.16.0, 3.16.1, 3.16.2, 3.16.3, 3.16.4, 3.16.5, 3.16.6, 3.16.7, 3.17.0, 3.17.1, 3.17.2, 3.17.3, 3.18.0, 3.18.1, 3.18.2, 3.19.0, 3.19.1, 3.19.2, 3.20.0, 3.20.1, 3.21.0, 3.22.0, 3.22.1, 3.22.2, 3.22.3, 3.23.0, 3.23.1, 3.23.2, 3.24.0, 3.24.1, 3.25.0, 3.25.1, 3.26.0, 3.27.0, 3.28.0, 3.29.0, 3.29.1, 3.29.2, 3.29.3, 3.29.4, 3.29.5, 3.29.6, 3.29.7, 3.30.0, 3.30.1, 3.31.0, 3.31.1, 3.31.2, 3.32.0, 3.32.1, 3.32.2, 3.32.3, 3.33.0, 3.34.0, 3.35.0, 3.36.0, 3.37.0, 3.38.0, 3.38.1, 3.38.2, 3.38.3, 3.39.0, 3.40.0, 3.40.1, 3.40.2, 3.40.3, 3.41.0, 3.42.0, 3.42.1, 3.42.2, 3.42.3, 3.42.4, 3.42.5, 3.42.6, 3.43.0, 3.43.1, 3.43.2, 3.44.0, 3.44.1, 3.44.2, 3.44.3, 3.45.0, 3.46.0, 3.46.1, 3.46.2, 3.46.3, 3.46.4, 3.46.5, 3.46.6, 3.47.0, 3.48.0 All unaffected versions3.49.0, 3.50.0, 3.50.1, 3.51.0, 3.52.0, 3.53.0, 3.53.1, 3.54.0, 3.55.0, 3.55.1, 3.56.0, 3.57.0, 3.58.0, 3.59.0, 3.59.1, 3.59.2, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5, 4.1.0, 4.1.1, 4.1.2, 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.2.5, 4.2.6, 4.2.7, 4.2.8, 4.2.9, 4.2.10, 4.2.11, 4.2.12, 4.2.13, 4.2.14, 4.2.15, 4.2.16, 4.2.17, 4.2.18, 4.2.19, 5.0.0, 5.0.1, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.1.0, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.1.7, 5.1.8, 5.1.9, 5.1.10, 5.1.11, 5.1.12, 5.1.13, 5.1.14, 5.1.15, 5.1.16, 5.1.17, 5.2.0, 5.2.1, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.2.10, 5.2.11 |