Contributor-level stored XSS via unescaped shortcode attributes
Published Jul 24, 2025 · Updated Apr 8, 2026
Stored XSS in Skiv skiv video embedding 0.4 and earlier allows remote authenticated users to inject scripts through shortcodes. The muse-ai shortcode handler places user-supplied attribute values into generated embed markup without sufficient sanitization or output escaping. Contributor-level access or higher is required to store a payload, which runs in the browser of anyone who opens the injected page.
Summary
What happened
Stored XSS in Skiv skiv video embedding 0.4 and earlier allows remote authenticated users to inject scripts through shortcodes. The muse-ai shortcode handler places user-supplied attribute values into generated embed markup without sufficient sanitization or output escaping. Contributor-level access or higher is required to store a payload, which runs in the browser of anyone who opens the injected page.
The record
- CVE
- CVE-2025-6262
- Published
- Jul 24, 2025
- Updated
- Apr 8, 2026
- Vendor
- Skiv
- Product
- skiv video embedding
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 24, 2025CVE 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?
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- Affected versionversion=0 <=0.4
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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