Vulnerabilities in pkg:npm/quill

PACKAGE

Advisory Identifier: GHSA-v3m3-f69x-jf25

Advisory Summary

CVE-2025-15056 is a LOW (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Quill libraries in the npm ecosystem. The issue involves quill is vulnerable to xss via html export feature. Remediation is available in the latest vendor maintenance releases.

3 Known Advisory Record(s)

Package Vulnerability Intelligence

pkg:npm/quill

3 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/quill. Select an advisory below to view technical details or fixes.

Advisory ID	CVE / NVD	Severity	Summary
GHSA-v3m3-f69x-jf25	CVE-2025-15056	LOW	Quill is vulnerable to XSS via HTML export feature
GHSA-4943-9vgg-gr5r	CVE-2021-3163	MODERATE	Cross-site Scripting in quill
GHSA-588m-9qg5-35pq	-	MODERATE	Reverse Tabnabbing in quill

CVE-2025-15056 at a Glance

CVE Identifier CVE-2025-15056

GHSA Identifier GHSA-v3m3-f69x-jf25

Severity LOW

CVSS v3.1 Base Score 6.1

CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Product Quill

Package Ecosystem npm

Published Date 2026-01-13

Last Updated 2026-04-10

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)

Attack Complexity Low (AC:L)

Privileges Required None (PR:N)

User Interaction Required (UI:R)

Scope Changed (S:C)

Confidentiality Low (C:L)

Integrity Low (I:L)

Availability None (A:N)

How to Fix CVE-2025-15056

To remediate this vulnerability, upgrade all affected Quill dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

quill fixed: Latest secure release

npm install quill@Latest secure release

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

npm ls quill

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-15056, inspect your project dependencies using npm:

npm ls quill

Analyze the terminal output to locate any version of Quill in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls quill command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Quill, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A lack of data validation vulnerability in the HTML export feature in Quill in allows Cross-Site Scripting (XSS). This issue affects Quill: 2.0.3.

CVE-2025-15056 Affected Quill Versions

1 component(s)

Product / Package	Ecosystem	Affected Versions	Fixed Version
quill npm/quill	npm	2.0.3 All 1 versions 2.0.3	None specified

References

NVD — CVE-2025-15056 NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-15056

fluidattacks.com/advisories/diomedes WEB

https://fluidattacks.com/advisories/diomedes

Quill Source Repository REPOSITORY

https://github.com/slab/quill

Frequently Asked Questions

What is CVE-2025-15056?

CVE-2025-15056 is a security vulnerability in Quill involving Quill is vulnerable to XSS via HTML export feature under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').

Which Quill versions are affected?

Affected versions include releases prior to current release patches across affected packages: quill.

What version fixes CVE-2025-15056?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

Is quill affected?

Yes, quill is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.

What is the CVSS score of CVE-2025-15056?

CVE-2025-15056 has a CVSS v3.1 base score of 6.1 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

What CWE is associated with CVE-2025-15056?

CVE-2025-15056 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).

How can I check npm dependencies for CVE-2025-15056?

Run the dependency tree command: 'npm ls quill'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

Machine-readable OSV JSON OSV v1.5 Schema

Normalized schema output

View Raw JSON

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-v3m3-f69x-jf25",
  "modified" : "2026-04-10T19:34:23Z",
  "published" : "2026-01-13T21:31:46Z",
  "aliases" : [ "CVE-2025-15056" ],
  "summary" : "Quill is vulnerable to XSS via HTML export feature",
  "details" : "A lack of data validation vulnerability in the HTML export feature in Quill in allows Cross-Site Scripting (XSS).\n\nThis issue affects Quill: 2.0.3.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "quill"
    },
    "versions" : [ "2.0.3" ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-15056"
  }, {
    "type" : "WEB",
    "url" : "https://fluidattacks.com/advisories/diomedes"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/slab/quill"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-74", "CWE-79" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-01-16T16:58:02Z",
    "nvd_published_at" : "2026-01-13T21:15:49Z"
  }
}

CVSS V3

6.1 LOW