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MEDIUM severity

GHSA-v3m3-f69x-jf25 quill

MEDIUM

GHSA-v3m3-f69x-jf25 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in quill. No vendor fix is recorded yet; mitigation options are listed below.

Quill is vulnerable to XSS via HTML export feature

Also known asCVE-2025-15056
Published
Jan 13, 2026
Updated
Apr 10, 2026
Affected
1 pkg
Patched
None yet
Exploits
None indexed
Exploitation data as of Sep 20, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-v3m3-f69x-jf25.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs19th percentile — riskier than 19% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-v3m3-f69x-jf25 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 377,238 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

2Kother npm packages depend on this — each one inherits the vulnerability until it's patched upstream
quillnpm
5.2Mdownloads / week

Description

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.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
📦npmquillall versionsNo fix

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for quill, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    No patched version of quill has shipped for GHSA-v3m3-f69x-jf25 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-v3m3-f69x-jf25 can be triaged on real exposure rather than presence alone.

Tailored to GHSA-v3m3-f69x-jf25. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

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.
O3 Security · Impact-Aware SCA

Is GHSA-v3m3-f69x-jf25 in your dependencies?

O3 Security finds GHSA-v3m3-f69x-jf25 across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-v3m3-f69x-jf25: quill XSS (Medium 6.1) | O3 Security