CVE-2026-27901

EPSS 0.03%

Svelte vulnerable to XSS during SSR with contenteditable `bind:innerText` and `bind:textContent`

Published: 2/26/2026Modified: 4/4/2026

Also known as:GHSA-phwv-c562-gvmhCGA-65pc-m6f3-5gx8

Description

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.

Affected packages (1)

npm/sveltefrom 0, < 5.53.5

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 4.0	—	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N

References (5)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-27901
PATCHhttps://github.com/sveltejs/svelte
WEBhttps://github.com/sveltejs/svelte/commit/0df5abcae223058ceb95491470372065fb87951d
WEBhttps://github.com/sveltejs/svelte/releases/tag/[email protected]
WEBhttps://github.com/sveltejs/svelte/security/advisories/GHSA-phwv-c562-gvmh