CVE-2024-13731
Alert Box Block – Display notice/alerts in the front end <= 1.1.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Alert Box Block
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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, 1.1.3 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.
| CWE | CWE-79 |
| Vendor | bplugins |
| Product | alert box block – display custom alerts and messages |
| Published | Mar 25, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
bplugins / Alert Box Block – Display Custom Alerts and Messages
0 ≤ 1.1.3
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/d63cd13e-4a16-483f-8165-6c8090ceebab?source=cve wordpress.org: https://wordpress.org/plugins/alert-box-block/ plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?old_path=/alert-box-block/tags/1.1.3&new_path=/alert-box-block/tags/1.1.4&sfp_email=&sfph_mail=
Credits
Nguyen Vuong Quoc Pham Van Tam Nguyen Khanh Hao