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Low, CVSS 2.0amended

Quill is vulnerable to XSS via HTML export feature

CVE-2025-15056GHSA-v3m3-f69x-jf25

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • npm quill

    Affected
    >= 2.0.3, <= 2.0.3
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
2.0 · 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 · score source
EPSS
  • CVE-2025-15056: 0.27% estimated exploitation activity in the next 30 days; percentile 19.17 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

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.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-v3m3-f69x-jf25

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-v3m3-f69x-jf25

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2025-15056

Advisory: Quill is vulnerable to XSS via HTML export feature
IDs: CVE-2025-15056, GHSA-v3m3-f69x-jf25
Record: https://patchnext.com/advisories/cve-2025-15056 (revision 3, source checked 26 Oct 2026, 12:48 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 2.0)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm quill: affected >= 2.0.3, <= 2.0.3

## Suggested inspection (read-only)
- `npm ls quill --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on quill.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-v3m3-f69x-jf25 (OSV record GHSA-v3m3-f69x-jf25 lists affected ranges: npm quill >=2.0.3 <=2.0.3)
- Verified: https://github.com/advisories/GHSA-v3m3-f69x-jf25 (GitHub-reviewed advisory GHSA-v3m3-f69x-jf25 lists affected ranges: npm quill >=2.0.3 <=2.0.3)

Commands are suggestions: review each one before running it.

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