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

CVSS 4.0 5.3 MEDIUMEUVD CVSS 4.0 5.3 CVSS 4.0 · [email protected] · Secondary 5.3 MEDIUMCVSS 3.1 · [email protected] · Primary 6.1 MEDIUMCVSS_V4 Publisher rating MODERATEFixed by svelte 5.53.5KEV status unknown

cve-program · CVE-2026-27901

Published

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.

Read the publisher's advisory

euvd · EUVD-2026-8799

Published

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.

Read the publisher's advisory

nvd · CVE-2026-27901

Published

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.

Read the publisher's advisory

osv · GHSA-phwv-c562-gvmh

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-27901

Published

svelte

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "sveltejs",
                    "product": "svelte",
                    "versions": [
                        {
                            "version": "< 5.53.5",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-8799

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Feb 26, 2026, 12:57:40 AM

dateUpdated: Feb 26, 2026, 2:31:00 PM

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-27901

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-79

Original publisher date fields

published: 2026-02-26T02:16:20.967

lastModified: 2026-06-17T10:27:50.957

2 source CPE criteria · context only
  • cpe:2.3:a:svelte:svelte:*:*:*:*:*:node.js:*:*
  • cpe:2.3:a:svelte:svelte:5.53.5:*:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-phwv-c562-gvmh

Published

svelte

npm

SEMVER · introduced 0 → fixed 5.53.5

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 15 Nov 20:10 UTC · 254 of 275 readable · 250 fully read · documentation 469/469 current