CVE-2025-3863: 
WordPress vulnerability analysis and mitigation

The Post Carousel Slider for Elementor plugin for WordPress contains a vulnerability (CVE-2025-3863) discovered in June 2025. The vulnerability affects all versions up to and including 1.6.0, stemming from improper authorization due to a missing capability check on the processwbelpspromo_form() function (NVD Database).

The vulnerability is classified as CWE-862 (Missing Authorization) with a CVSS v3.1 Base Score of 4.3 MEDIUM (Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N). The issue specifically involves insufficient authorization controls in the processwbelpspromo_form() function, which fails to properly validate user capabilities before allowing access to the support form handler (Wiz Report).

The vulnerability allows authenticated attackers with Subscriber-level access or higher to send arbitrary emails to the site's support address. While the impact is limited to email functionality, it could potentially be exploited for spam campaigns or social engineering attacks through the compromised support channel (Wiz Report).

The vulnerability has been patched in version 1.7.0 of the Post Carousel Slider for Elementor plugin. The update implements proper capability checks and security fixes to address the missing authorization issue. Users are strongly advised to upgrade to version 1.7.0 or later (WordPress Plugin).