CVE-2026-89307 PUBLISHED

HTML injection allows open redirection in WordPress theme design-scuole-wordpress-theme

Assigner: ENISA
Reserved: 11.09.2026 Published: 15.09.2026 Updated: 15.09.2026

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).

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	Developers Italia
Product	design-scuole-wordpress-theme
Versions	Default: unaffected affected from 1.0 to 2.17.3 (incl.)

Credits

Lorenzo Zarfati finder
CSIRT-IT coordinator

References

Problem Types

CWE-601 URL redirection to untrusted site ('open redirect') CWE

Impacts

CAPEC-98 Phishing