GHSA-xc7j-3g8q-9vh4: YesWiki has stored XSS in Bazar form-field templates via unescaped field.label / field.hint (|raw('html'))

Bazar form-field templates still apply |raw('html') to field.label / field.hint in attribute and label-body contexts — stored XSS in form renders (sibling class of commit e6b66aa) CWE: CWE-79 (Improper Neutralization of Input During Web Page Generation, "Cross-site Scripting") via CWE-116 (Improper Encoding or Escaping of Output) — same class as the partial fix at commit e6b66aa CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N → 4.7 (Medium) (Privileges Required = High because writing the field definitions requires saisie_formulaire, which tools/bazar/services/Guard.php:58-61 grants only to admins by default; Scope = Changed because the XSS payload set by a form-editor admin executes in the origin context of arbitrary viewers, including unauthenticated visitors.) Summary Commit e6b66aa ("fix(bazar): leave the twig escape placeholder as is", 2026-05-19) recognised that emitting field.label through Twig's raw('html') filter into an HTML attribute is unsafe — Twig's raw marker suppresses the attribute auto-escape, striptags removes <…> tags but not ", so a label containing " can break out of the attribute and inject event-handler attributes. The commit fixed tools/bazar/templates/inputs/text.twig:19 and tools/bazar/templates/inputs/textarea.twig:3. At least seven additional templates have the same pattern and were not touched by the fix: - tools/bazar/templates/inputs/range.twig:19 — placeholder="{{ field.label|raw('html')|striptags }}" - tools/bazar/templates/inputs/email.twig:13 — placeholder="{{ field.label|raw('html')|striptags }}" - tools/bazar/templates/layouts/input.twig:7 — title="{{ field.hint|raw('html') }}" alt="{{ field.hint|raw('html') }}" - tools/bazar/templates/inputs/textarea.twig:14 — same title=/alt= pattern (the commit only fixed line 3, line 14 remains) - tools/bazar/templates/inputs/user.twig:41, 55 — same - tools/bazar/templates/inputs/bookmarklet.twig:4 — same - tools/bazar/templates/layouts/input.twig:9, tools/bazar/templates/layou