CVE-2025-11880: 
WordPress vulnerability analysis and mitigation

The SM CountDown Widget plugin for WordPress (versions ≤ 1.2) was identified with a Stored Cross-Site Scripting vulnerability (CVE-2025-11880). The vulnerability was discovered and disclosed on October 21, 2025, affecting the plugin's smcountdown shortcode functionality. This security issue stems from insufficient input sanitization and output escaping on user-supplied attributes (NVD, Wordfence).

The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation) with a CVSS v3.1 Base Score of 6.4 (Medium). The vulnerability vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N, indicating network accessibility, low attack complexity, and required low privileges for exploitation (NVD).

The vulnerability allows authenticated attackers with contributor-level access or higher to inject arbitrary web scripts into pages. These malicious scripts will execute whenever a user accesses the compromised page, potentially leading to unauthorized data access or manipulation (NVD).

Users should upgrade their SM CountDown Widget plugin to versions newer than 1.2 as soon as updates become available. Until then, it is recommended to restrict access to the plugin's functionality to trusted users only (NVD).