CVE-2025-27002
Published: 08 January 2026
Summary
CVE-2025-27002 is a high-severity Cross-site Scripting (CWE-79) vulnerability. Its CVSS base score is 7.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 7.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).
Deeper analysis
CVE-2025-27002 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, affecting the WordPress plugin CountDown With Image or Video Background by LambertGroup. The issue impacts all versions of the plugin from n/a through 1.5 inclusive. It was published on 2026-01-08 with a CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L).
Attackers can exploit this vulnerability remotely over the network with low attack complexity, requiring no privileges but user interaction, such as clicking a malicious link. Exploitation reflects unsanitized input into the web page, enabling arbitrary JavaScript execution in the victim's browser context with changed scope, potentially compromising low levels of confidentiality, integrity, and availability.
The Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/countdown-with-background/vulnerability/wordpress-countdown-with-image-or-video-background-plugin-1-5-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve documents the Reflected XSS vulnerability specific to plugin version 1.5. Security practitioners should review this reference for mitigation guidance and patch details.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-1525
Vulnerability details
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LambertGroup CountDown With Image or Video Background countdown-with-background allows Reflected XSS.This issue affects CountDown With Image or Video Background: from n/a through <= 1.5.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Reflected XSS in public-facing WordPress plugin directly enables T1190 exploitation; arbitrary JS execution maps to T1059.007; delivery requires malicious link consistent with T1566.002.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation of all inputs to reject or sanitize untrusted data before it is reflected into web page output, blocking the root cause of this reflected XSS flaw.
Requires filtering or encoding of information outputs so that script content supplied via unsanitized parameters cannot execute in the victim's browser context.
Enforces information flow rules that can be configured to strip or block script tags and event handlers from crossing trust boundaries into rendered pages.