CVE-2025-23803
Published: 22 January 2025
Summary
CVE-2025-23803 is a high-severity CSRF (CWE-352) 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 28.0th 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 SC-23 (Session Authenticity) and SI-10 (Information Input Validation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Enforces session authenticity mechanisms like anti-CSRF tokens to prevent forged requests exploiting the CSRF vulnerability in Snippy.
Filters and encodes information output to block reflected XSS execution triggered by the CSRF attack.
Validates inputs from external sources to reject malicious payloads in CSRF requests leading to XSS.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability is a CSRF leading to reflected XSS in a public-facing WordPress plugin, directly enabling remote exploitation of an internet-facing application without authentication.
NVD Description
Cross-Site Request Forgery (CSRF) vulnerability in Rik Schennink Snippy snippy allows Reflected XSS.This issue affects Snippy: from n/a through <= 1.4.1.
Deeper analysisAI
CVE-2025-23803 is a Cross-Site Request Forgery (CSRF) vulnerability in the Snippy WordPress plugin developed by Rik Schennink. The issue affects Snippy versions from n/a through 1.4.1 and enables Reflected Cross-Site Scripting (XSS). Published on 2025-01-22, it carries 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) and maps to CWE-352.
Remote attackers require no privileges to exploit this vulnerability, but user interaction is necessary, such as an authenticated victim visiting a malicious site. The attacker can craft a webpage that forges a CSRF request to the Snippy plugin, triggering reflected XSS in the user's browser. This changes the scope of impact, allowing limited confidentiality, integrity, and availability effects, such as potential session token theft or malicious script execution within the plugin's context.
The Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/snippy/vulnerability/wordpress-snippy-plugin-1-4-1-csrf-to-cross-site-scripting-xss-vulnerability?_s_id=cve provides details on the CSRF-to-XSS vulnerability in Snippy version 1.4.1 for WordPress. Security practitioners should consult this reference for recommended mitigations.
Details
- CWE(s)