Portabilis i-Diario CVE-2025-7871

No vendor-released patch identified at time of analysis. The vendor was reportedly contacted early but did not respond. Immediate mitigation options include: (1) Upgrade to a patched version if released post-disclosure by checking the Portabilis official repository; (2) Implement input validation on the filter[by_description] parameter to reject or sanitize special characters (< > " ' &); (3) Apply HTML entity encoding to all user-supplied input before rendering in responses; (4) Implement a Content Security Policy (CSP) header with script-src 'self' to prevent inline script execution (note: this may break legitimate application functionality if i-Diario uses inline scripts); (5) Restrict access to /conteudos endpoint via network-level controls or reverse proxy rules if the feature is not critical; (6) Educate users not to click suspicious links containing filter parameters. Given vendor non-responsiveness, consider migrating to alternative educational management systems if security patching is a requirement.