CVE-2024-13866: Simple Notification <= 1.3 - Authenticated (Administrator+) Stored Cross-Site Scripting
Description
The Simple Notification plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 1.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Classification
CVE ID: CVE-2024-13866
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
Problem Types
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Affected Products
Vendor: appsbd
Product: Simple Notification
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.03% (probability of being exploited)
EPSS Percentile: 4.81% (scored less or equal to compared to others)
EPSS Date: 2025-04-02 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2024-13866https://www.wordfence.com/threat-intel/vulnerabilities/id/e814f798-5ebc-4bea-838f-d0a803f9bdbc?source=cve
https://wordpress.org/plugins/simple-notification/#developers