Security audit: XSS analysis of contract details message rendering paths#9
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[WIP] Analyze XSS mitigation using SafeDiv and DomPurify
Security audit: XSS analysis of contract details message rendering paths
Mar 15, 2026
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Audit of all DOM rendering paths for the contract details
messagefield to verify SafeDiv coverage and identify any unprotected injection points.Findings
All message rendering paths are protected:
SafeDiv()sandboxed iframe ✅validation(msg, " .,!?-+_@").slice(0,20)strips all HTML chars before innerHTML ✅textarea.value, never parsed as HTML ✅validation(DOMPurify.sanitize(...))✅Minor observation
existingNotesfromlocalStorage.getItem()goes to innerHTML unsanitized at lines 7913, 8056, 8339. Self-XSS only — user writes their own notes to their own localStorage via Swal textarea input (line 10102). No third-party injection vector exists.No code changes
This PR contains no code modifications — analysis only.
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