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Potential fix for code scanning alert no. 42: DOM text reinterpreted as HTML #4026

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Merged
thorsten merged 2 commits into from
Feb 27, 2026
+24 −2
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Potential fix for code scanning alert no. 42: DOM text reinterpreted as HTML #4026

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Potential fix for code scanning alert no. 42: DOM text reinterpreted …
thorsten Feb 27, 2026
c101558
Potential fix for code scanning alert no. 43: Double escaping or unes…
thorsten Feb 27, 2026
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26 changes: 24 additions & 2 deletions phpmyfaq/admin/assets/src/utils/flesch-reading-ease.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -42,10 +42,32 @@ export type SupportedLanguage =

/**
* Strips HTML tags from content to get plain text
*
* This implementation avoids parsing the input as HTML to prevent
* reinterpreting arbitrary text as markup. It removes tag-like
* structures and decodes a small set of common HTML entities.
*/
export const stripHtml = (html: string): string => {
const doc = new DOMParser().parseFromString(html, 'text/html');
return doc.body.textContent || '';
if (!html) {
return '';
}

// Remove HTML tags
let text = html.replace(/<[^>]*>/g, ' ');

// Decode a few common HTML entities needed for readability
text = text.replace(/&nbsp;/gi, ' ');
text = text.replace(/&lt;/gi, '<');
text = text.replace(/&gt;/gi, '>');
text = text.replace(/&quot;/gi, '"');
text = text.replace(/&#39;/g, "'");
// Decode ampersand last to avoid double-unescaping sequences like "&amp;lt;"
text = text.replace(/&amp;/gi, '&');

// Normalize whitespace
text = text.replace(/\s+/g, ' ').trim();

return text;
};

/**
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