PT-2022-17581 · Svelte · Svelte

Maurício Kishi · Published 2022-07-12 · Updated 2022-07-19 · CVE-2022-25875

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions svelte versions prior to 3.49.0

Description The issue arises from improper input sanitization and improper escape of attributes when using objects during Server-Side Rendering (SSR), leading to Cross-site Scripting (XSS). This can be exploited via objects with a custom toString() function.

Recommendations For versions prior to 3.49.0, update to version 3.49.0 or later to resolve the issue. As a temporary workaround, consider restricting the use of objects with custom toString() functions in SSR until a patch is applied.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2022-25875

GHSA-WV8Q-R932-8HC7

SNYK-JS-SVELTE-2931080

Affected Products

Svelte

References · 10

• 🔥 https://github.com/sveltejs/svelte/commit/f8605d6acbf66976da9b4547f76e90e163899907 · Exploit
• 🔥 https://snyk.io/vuln/SNYK-JS-SVELTE-2931080 · Exploit
• https://osv.dev/vulnerability/CVE-2022-25875 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-wv8q-r932-8hc7 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-25875 · Security Note
• https://github.com/sveltejs/svelte · Note
• https://github.com/sveltejs/svelte/pull/7530%23issuecomment-1158575990 · Note
• https://github.com/sveltejs/svelte/pull/7530#23issuecomment-1158575990 · Note
• https://t.me/cvenotify/32964 · Telegram Post
• https://t.me/cibsecurity/46081 · Telegram Post