CVE-2025-31090: 
WordPress vulnerability analysis and mitigation

A Cross-site Scripting (XSS) vulnerability has been identified in the alordiel Dropdown Multisite selector WordPress plugin, tracked as CVE-2025-31090. The vulnerability was discovered on March 19, 2025, and publicly disclosed on March 28, 2025. This stored XSS vulnerability affects versions of Dropdown Multisite selector prior to 0.9.4, requiring contributor-level privileges or higher for exploitation (Patchstack).

The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation) and has received a CVSS v3.1 score of 6.5 (Medium), with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L. The vulnerability requires low attack complexity but needs user interaction and low privileges for exploitation (NVD).

If exploited, this vulnerability could allow malicious actors to inject malicious scripts, including redirects, advertisements, and other HTML payloads into the website. These injected scripts would be executed when guests visit the affected site (Patchstack).

The vulnerability has been patched in version 0.9.4 of the Dropdown Multisite selector plugin. Users are advised to update to version 0.9.4 or later to remediate the vulnerability. Patchstack users have the additional option to enable auto-updates for vulnerable plugins (Patchstack).