CVE-2022-25875

Summary

The package svelte before 3.49.0 are 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.

Impact & exploitability

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://github.com/sveltejs/svelte/commit/f8605d6acbf66976da9b4547f76e90e163899907 ↗

Additional information

• NVD record
• https://github.com/sveltejs/svelte/commit/f8605d6acbf66976da9b4547f76e90e163899907Patch
• https://snyk.io/vuln/SNYK-JS-SVELTE-2931080Patch
• https://github.com/sveltejs/svelte/pull/7530%23issuecomment-1158575990