Authenticated script execution via undisclosed DOM sink
Published Apr 8, 2026 · Updated Apr 8, 2026
DOM-based XSS in the Korea SNS WordPress plugin 1.7.0 and earlier allows remote authenticated users to execute script in a victim's browser. The client-side input source, DOM sink, and faulty data-flow operation have not been publicly disclosed by Patchstack or the CNA record. Author-level access is required to initiate exploitation, and a privileged user must perform an action; the resulting script executes in the visitor's site context.
Summary
What happened
DOM-based XSS in the Korea SNS WordPress plugin 1.7.0 and earlier allows remote authenticated users to execute script in a victim's browser. The client-side input source, DOM sink, and faulty data-flow operation have not been publicly disclosed by Patchstack or the CNA record. Author-level access is required to initiate exploitation, and a privileged user must perform an action; the resulting script executes in the visitor's site context.
The record
- CVE
- CVE-2026-39667
- Published
- Apr 8, 2026
- Updated
- Apr 8, 2026
- Vendor
- Jongmyoung Kim
- Product
- Korea SNS
- Classifications
- CWE-79, CAPEC-588
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 8, 2026CVE publishedPublication date reported by the CVE source.
- Apr 8, 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=0 <=1.7.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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
No public exploit references are available in this record.
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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