What’s Vulnerable › Vulnerabilities

CVE-2026-58263: Jodit Editor: Mutation XSS in jodit clean-html via a MathML/style rawtext carrier

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-01 · updated 2026-10-25
• Weakness: CWE-79

Description

Jodit Editor is a WYSIWYG editor with a built-in file browser & image editor. In versions prior to 4.12.28, the built-in clean-html sanitizer can be bypassed by a MathML/<style> carrier that hides a dangerous element from the sanitizer's element walk, so a no-interaction event handler survives into the editor value, potentially causing Mutation XSS. When an application supplies attacker-influenced HTML to the editor's value-set or insertion paths, the sanitized output still contains a live <img ... onload=...> (or another non-onerror handler such as onfocus). A consumer that renders that output (element.innerHTML = editor.value) executes the handler with no user interaction. This issue has been fixed in version 4.12.28.

Affected products

• xdan jodit: before 4.12.28

References

• https://github.com/xdan/jodit/security/advisories/GHSA-rxcw-mc6f-6hr3
• https://github.com/xdan/jodit/security/advisories/GHSA-rxcw-mc6f-6hr3

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