Cross-site scripting via document.scripts DOM clobbering
Published Mar 3, 2025 · Updated Mar 4, 2025
DOM-based XSS in seajs 2.2.3 and earlier allows attackers to execute attacker-hosted JavaScript in a visitor's browser. In src/util-path.js, the loader trusts document.scripts, so named DOM access can replace the script collection with attacker-injected elements whose src becomes the base URL for dynamic module loads. Exploitation requires a page that integrates seajs, accepts unsanitized scriptless HTML with attacker-controlled name attributes, and is then visited by another user.
Summary
What happened
DOM-based XSS in seajs 2.2.3 and earlier allows attackers to execute attacker-hosted JavaScript in a visitor's browser. In src/util-path.js, the loader trusts document.scripts, so named DOM access can replace the script collection with attacker-injected elements whose src becomes the base URL for dynamic module loads. Exploitation requires a page that integrates seajs, accepts unsanitized scriptless HTML with attacker-controlled name attributes, and is then visited by another user.
The record
- CVE
- CVE-2024-51091
- Published
- Mar 3, 2025
- Updated
- Mar 4, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- Unavailable
Timeline
How it unfolded
- Mar 3, 2025CVE publishedPublication date reported by the CVE source.
- Mar 4, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- DOM Clobbering Gadget found in seajs that leads to XSSproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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