CVE-2026-27901

EUVD-2026-8799
Svelte performance oriented web framework. Prior to version 5.53.5, the contents of `bind:innerText` and `bind:textContent` on `contenteditable` elements were not properly escaped. This could enable HTML injection and Cross-Site Scripting (XSS) if rendering untrusted data as the binding's initial value on the server. Version 5.53.5 fixes the issue.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
sveltesvelte
𝑥
< 5.53.5
sveltesvelte
5.53.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/sveltejs/svelte/commit/0df5abcae223058ceb95491470372065fb87951d
https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.5
https://github.com/sveltejs/svelte/security/advisories/GHSA-phwv-c562-gvmh