The Alert Box Block – Display notice/alerts in the front end. plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Alert Box block in all versions up to, and including, 1.1.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVE ID: CVE-2024-13731
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.4
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Vendor: bplugins
Product: Alert Box Block – Display notice/alerts in the front end.
EPSS Score: 0.03% (probability of being exploited)
EPSS Percentile: 6.71% (scored less or equal to compared to others)
EPSS Date: 2025-04-22 (when was this score calculated)