CVE-2026-42539: Insufficient Xss Escaping In Attribute
Using basic HTML escaping (e.g., `escapeHtml`) inside HTML attributes is potentially insecure because it may not escape quotes (`"` or `'`). This allows an attacker to break out of the attribute and inject an event handler (Stored XSS). Use a robust sanitizer such as `DOMPurify` or `xss` (`filterXSS`), or ensure your escaping utility explicitly replaces quot
JSgreprules fetch cve-2026-42539-insufficient-xss-escaping-in-attribute --engine opengrepDescription
Using basic HTML escaping (e.g., `escapeHtml`) inside HTML attributes is potentially insecure because it may not escape quotes (`"` or `'`). This allows an attacker to break out of the attribute and inject an event handler (Stored XSS). Use a robust sanitizer such as `DOMPurify` or `xss` (`filterXSS`), or ensure your escaping utility explicitly replaces quot
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