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MEDIUM severity

CVE-2021-30109 — froala-editor

MEDIUM

CVE-2021-30109 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in froala-editor. No vendor fix is recorded yet; mitigation options are listed below.

Cross-site Scripting in Froala Editor

Also known asGHSA-cq6w-w5rj-p9x8
Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
None indexed
Exploitation data as of Oct 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs68th percentile — riskier than 68% of all scored CVEsHighest risk
0.00%0.57%1.15%1.72%0.3%1.2%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2021-30109 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,386 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

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.

192other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
froala-editornpm
351Kdownloads / week

Description

Froala Editor 3.2.6 is affected by Cross Site Scripting (XSS). Under certain conditions, a base64 crafted string leads to persistent Cross-site scripting (XSS) vulnerability within the hyperlink creation module.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
📦npmfroala-editorall versionsNo fix

Affected Products

1 product · 1 configurations
Application
froala editorfroala
1 version
3.2.6

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Remediation status

    No patched version of froala-editor has shipped for CVE-2021-30109 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

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

Froala Editor 3.2.6 is affected by Cross Site Scripting (XSS). Under certain conditions, a base64 crafted string leads to persistent Cross-site scripting (XSS) vulnerability within the hyperlink creation module.
O3 Security · Impact-Aware SCA

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CVE-2021-30109: froala-editor XSS (Medium 6.1)