CVE-2026-27901

MEDIUM EPSS 11.7%
Published Feb 26, 20264mo ago · Modified Jun 17, 20262w ago
5.3 CVSS 4.0
Medium
Find Similar
Published Feb 26, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
5.3
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
11.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 2

VendorProductVersionRange
sveltesvelte* <5.53.5
sveltesvelte5.53.5any

References 3

  • github.com https://github.com/sveltejs/svelte/commit/0df5abcae223058ceb95491470372065fb87951d
    Patch
  • github.com https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.5
    Release Notes
  • github.com https://github.com/sveltejs/svelte/security/advisories/GHSA-phwv-c562-gvmh
    Vendor Advisory

Remediation

  • github.com https://github.com/sveltejs/svelte/commit/0df5abcae223058ceb95491470372065fb87951d
    Patch