Bollettino del 29 settembre 2026
CVE-2026-101127: Balbooa Forms extension for Joomla (balbooa.com)
Vulnerabilità critica, punteggio 9,4 su 10, in Balbooa Forms extension for Joomla (balbooa.com). Sfruttabile da remoto, via rete, senza credenziali, senza che nessuno faccia nulla. Tipo: cross-site scripting (XSS).
- Gravità
- 9,4 su 10 (critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L - Tipo di difetto
- CWE-79: cross-site scripting (XSS)
- Pubblicata
- 29 settembre 2026
Descrizione originale
Joomla Extension - balbooa.com - Unauthenticated upload filename stored XSS in Balbooa Forms < 2.4.3.4 - The public form upload endpoint validates the uploaded file's extension and detected MIME type, but stores the attacker-supplied original multipart filename verbatim in `#__baforms_submissions_attachments.name`. A later anonymous form submission associates that temporary attachment with the newly created submission. When an administrator opens the submission, the component's JavaScript retrieves the stored attachment record and concatenates `file.name` directly into an HTML string. The complete string is assigned to `innerHTML`.