CVE-2026-89307
MediumCVSS 5.1Summary
The "Firma Circolare" feature in the "Design Scuole Italia" WordPress theme allows an authenticated attacker to inject arbitrary HTML via the sign parameter, enabling forced redirection of visiting users to an attacker-controlled URL (Stored HTML Injection / Open Redirect).
Risk Assessment
The organization is exposed to phishing and data theft, as users can be redirected to malicious sites without their knowledge.
Recommendation
It is recommended to update the "Design Scuole Italia" theme to the latest version and validate/sanitize the sign parameter to prevent HTML injection.
Other vulnerabilities in Design Scuole Italia WordPress theme
See all- CVE-2026-87793Medium
The "Design Scuole Italia" WordPress theme is affected by a Reflected XSS vulnerability in the filters-scheda-didattica.php file, allowing an unauthenticated attacker to execute arbitrary JavaScript in a victim's browser via a crafted URL containing a malicious archive parameter.
- CVE-2026-87792High
The "Design Scuole Italia" WordPress theme is affected by multiple authorization bypass vulnerabilities in the dsi_pdf_generator and dsi_csv_generator functions, allowing an unauthenticated attacker to access restricted "Circolare" content and registered users' data. An unauthenticated RSS feed at /circolare/feed/ further facilitates exploitation.
- CVE-2026-87791High
A path traversal vulnerability exists in the reserved_file_check function of the functions.php file in the WordPress Design Scuole Italia theme. The vulnerability allows an unauthenticated attacker to download arbitrary files accessible by the web server process.
Original NVD description (English source)
The "Firma Circolare" feature in the "Design Scuole Italia" WordPress theme allows an authenticated attacker to inject arbitrary HTML via the sign parameter, enabling forced redirection of visiting users to an attacker-controlled URL (Stored HTML Injection / Open Redirect).

