CVE-2026-42538: Potentially Flawed Custom Html Escape
A potentially insecure custom function is interpolated directly into an HTML attribute value within a template literal. If this function fails to adequately escape double quotes, it enables attribute breakout and Cross-Site Scripting (XSS). Use a thoroughly tested standard library or explicitly context-aware sanitizers (e.g., filterXSS, DOMPurify).
JSgreprules fetch cve-2026-42538-potentially-flawed-custom-html-escape --engine opengrepDescription
A potentially insecure custom function is interpolated directly into an HTML attribute value within a template literal. If this function fails to adequately escape double quotes, it enables attribute breakout and Cross-Site Scripting (XSS). Use a thoroughly tested standard library or explicitly context-aware sanitizers (e.g., filterXSS, DOMPurify).
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