DOM XSS via unsanitized editor configuration
Published Feb 6, 2026 · Updated Feb 6, 2026
DOM XSS in SCEditor before 3.2.1 allows remote authenticated users to execute JavaScript through attacker-controlled configuration options. The sceditor.create() path writes unescaped charset and style values into the editor iframe document and assigns unchecked emoticon URLs to image src attributes. Exploitation requires control of initialization options and user interaction, after which script runs in the embedding page's origin and can read or modify data available there.
Summary
What happened
DOM XSS in SCEditor before 3.2.1 allows remote authenticated users to execute JavaScript through attacker-controlled configuration options. The sceditor.create() path writes unescaped charset and style values into the editor iframe document and assigns unchecked emoticon URLs to image src attributes. Exploitation requires control of initialization options and user interaction, after which script runs in the embedding page's origin and can read or modify data available there.
The record
- CVE
- CVE-2026-25581
- Published
- Feb 6, 2026
- Updated
- Feb 6, 2026
- Vendor
- Sam Clarke
- Product
- SCEditor
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 6, 2026CVE publishedPublication date reported by the CVE source.
- Feb 6, 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=< 3.2.1
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
- SCEditor emoticon URL injection proof of conceptproof of concept · unverified
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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