CVE-2026-65841 Jodit has cross-site scripting (XSS) via <script> nested in SVG that bypasses clean-html sanitization

Medium 5.3 Published Updated

An attacker can execute arbitrary JavaScript by injecting script tags within SVG or MathML elements that bypass the editor's HTML sanitization.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-65841?

CVE-2026-65841 is a medium-severity cross-site scripting vulnerability in xdan jodit, published on 31 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Jodit Editor is a WYSIWYG editor with a built-in file browser & image editor. Prior to 4.13.6, Jodit's clean-html denyTags filter does not normalize foreign SVG or MathML script node names, allowing a script element nested directly in SVG or MathML to remain in editor.value and execute when content is loaded. This issue is fixed in version 4.13.6.

Weakness: CWE-80

Which versions are affected by CVE-2026-65841?

2 open source packages ship an affected version, including jodit.

PackageAffectedFixed in
jodit npmAll versions4.13.6
jodit npmAll versions4.13.6

How do I fix CVE-2026-65841?

Upgrade jodit to 4.13.6 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-65841 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-65841 exists.

Sources

Also known as GHSA-45qg-252v-3f7p.

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