CVE-2025-64635 is a missing authorization vulnerability identified in the Syed Balkhi Feeds for YouTube WordPress plugin, specifically affecting versions up to and including 2.4.0. The flaw arises from incorrectly configured access control security levels, allowing attackers with low privileges (PR:L) to access or manipulate resources without proper authorization. The vulnerability is exploitable remotely over the network (AV:N) without requiring user interaction (UI:N). The impact primarily affects confidentiality and integrity, with no direct impact on availability. The CVSS v3.1 base score is 5.4, indicating a medium severity level. The vulnerability could allow unauthorized users to access or modify YouTube feed data integrated into WordPress sites, potentially leading to data leakage or content tampering. No public exploits have been reported yet, but the presence of this vulnerability in a widely used plugin could attract attackers once disclosed. The issue was reserved in early November 2025 and published in mid-December 2025, with no patch links currently available, indicating that remediation may still be pending. Organizations using this plugin should prioritize monitoring and mitigation to prevent exploitation.

For European organizations, the vulnerability poses risks primarily to websites using the Feeds for YouTube plugin to display YouTube content. Unauthorized access or modification of feed data could lead to misinformation, reputational damage, or leakage of sensitive integration details. While the direct impact on core business systems is limited, organizations relying on WordPress for marketing, communications, or media delivery could experience integrity and confidentiality issues. Attackers exploiting this vulnerability could manipulate displayed content, potentially misleading users or damaging brand trust. Given the medium severity and lack of availability impact, critical infrastructure is less likely to be affected, but digital media companies, news outlets, and e-commerce platforms using this plugin may face elevated risks. The absence of known exploits reduces immediate threat but does not eliminate future risk, especially as the plugin is popular in European markets.

1. Monitor official Syed Balkhi channels and WordPress plugin repositories for patches addressing CVE-2025-64635 and apply updates immediately upon release. 2. In the interim, restrict access to WordPress admin and plugin management interfaces to trusted users only, enforcing strict role-based access controls. 3. Audit current access control configurations within the plugin and WordPress to ensure no excessive privileges are granted to low-level users. 4. Implement web application firewalls (WAF) with custom rules to detect and block suspicious requests targeting the Feeds for YouTube plugin endpoints. 5. Conduct regular security assessments and penetration tests focusing on WordPress plugins to identify similar authorization weaknesses. 6. Educate site administrators about the risks of plugin vulnerabilities and the importance of timely updates and access control hygiene. 7. Consider temporarily disabling the Feeds for YouTube plugin if it is not critical to operations until a patch is available.