CVE-2024-3929: 
WordPress vulnerability analysis and mitigation

The Content Views – Post Grid & Filter, Recent Posts, Category Posts, & More (Gutenberg Blocks and Shortcode) WordPress plugin is vulnerable to Stored Cross-Site Scripting via the Widget Post Overlay block in versions up to and including 3.7.0. The vulnerability was discovered and disclosed on April 25, 2024 (Wordfence Intel).

The vulnerability exists due to insufficient input sanitization and output escaping on user-supplied attributes in the Widget Post Overlay block. The vulnerability has been assigned a CVSS v3.1 base score of 6.4 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N (NVD).

When exploited, this vulnerability allows authenticated attackers with contributor-level access and above to inject arbitrary web scripts into pages. These malicious scripts will execute whenever a user accesses the compromised page (NVD).

The vulnerability requires an authenticated user with at least contributor-level privileges to exploit. The attack vector is network-accessible, requires low attack complexity, and no user interaction is needed for the exploit to succeed (Wordfence Intel).

Users are advised to update their installations to a version newer than 3.7.0 which contains the fix for this vulnerability (WordPress Changeset).