CVE-2025-23639
Published: 16 January 2025
Summary
CVE-2025-23639 is a high-severity CSRF (CWE-352) vulnerability in Mdc Youtube Downloader Project Mdc Youtube Downloader. 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 17.3th 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 SC-23 (Session Authenticity) and SI-10 (Information Input Validation).
Deeper analysis
CVE-2025-23639 is a Cross-Site Request Forgery (CSRF) vulnerability in the WordPress plugin MDC YouTube Downloader (mdc-youtube-downloader) developed by Nazmul Ahsan that enables Stored Cross-Site Scripting (XSS). The flaw, tied to CWE-352, affects all versions of the plugin up to and including 3.0.0.
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), the vulnerability is exploitable over the network by unauthenticated attackers with low complexity, though it requires user interaction. An attacker can trick an authenticated user into submitting a malicious request via a crafted webpage, leading to the storage of XSS payloads that execute in the context of other users viewing affected content.
The Patchstack advisory (https://patchstack.com/database/Wordpress/Plugin/mdc-youtube-downloader/vulnerability/wordpress-mdc-youtube-downloader-plugin-3-0-0-csrf-to-stored-xss-vulnerability?_s_id=cve) documents the CSRF-to-stored-XSS issue specifically in version 3.0.0 of the WordPress MDC YouTube Downloader plugin.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-3303
Vulnerability details
Cross-Site Request Forgery (CSRF) vulnerability in Nazmul Ahsan MDC YouTube Downloader mdc-youtube-downloader allows Stored XSS.This issue affects MDC YouTube Downloader: from n/a through <= 3.0.0.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The CVE describes a network-exploitable CSRF-to-stored-XSS flaw in a public-facing WordPress plugin, directly enabling T1190 Exploit Public-Facing Application.
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Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
SC-23 enforces session authenticity mechanisms like anti-CSRF tokens, directly preventing forged requests that exploit this CSRF vulnerability to store XSS payloads.
SI-10 requires validation of user inputs to the WordPress plugin, blocking malicious payloads from being stored via the CSRF attack.
SI-15 mandates output filtering and encoding, preventing execution of any stored XSS payloads when affected content is viewed by other users.