MyBB 1.8.28 Released — Security & Maintenance Release

MyBB 1.8.28 is now available, and is a security & maintenance release.

This version resolves discovered bugs and regressions, and addresses known PHP 8 compatibility problems.

This version enables validation of HTML code generated by the MyCode parser — check the Documentation page and previous announcement for more details.

  • 1 security vulnerability addressed:

    • Medium risk: ACP Template Name XSS (advisory) — reported by Andrey Stoykov
  • 28 issues resolved

Check the Release Notes for more information.

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The MyBB Project extends thanks to reporters and researchers following responsible disclosure.
Go to to report possible security concerns or to learn more about security research at MyBB.
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MyBB Team