Stored XSS via MathML style sanitizer bypass
Published Jul 1, 2026 · Updated Jul 1, 2026
Mutation XSS in XDSoft Jodit before 4.12.28 allows remote attackers to execute script through attacker-influenced editor HTML. The clean-html element walk fails to inspect a dangerous element hidden by a MathML style raw-text carrier, leaving onload or other event attributes live in the editor value. Exploitation requires attacker-influenced HTML to reach a value-set or insertion path and a consuming application to render that value, which executes script in the victim's page without interaction.
Summary
What happened
Mutation XSS in XDSoft Jodit before 4.12.28 allows remote attackers to execute script through attacker-influenced editor HTML. The clean-html element walk fails to inspect a dangerous element hidden by a MathML style raw-text carrier, leaving onload or other event attributes live in the editor value. Exploitation requires attacker-influenced HTML to reach a value-set or insertion path and a consuming application to render that value, which executes script in the victim's page without interaction.
The record
- CVE
- CVE-2026-58263
- Published
- Jul 1, 2026
- Updated
- Jul 1, 2026
- Vendor
- XDSoft
- Product
- Jodit
- Classifications
- CWE-83, CWE-79, T1059.007
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 1, 2026CVE publishedPublication date reported by the CVE source.
- Jul 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 4.12.28
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- GHSA-rxcw-mc6f-6hr3 proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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