Post Carousel Slider for Elementor <= 1.6.0 - Authenticated (Subscriber+) Missing Authorization via process_wbelps_promo_form Function
Strategic Overview
- Status
- Patched in 1.7.0
- Affected Plugin
- Post Carousel Slider for Elementor
- Affected Version
<= 1.6.0- CVSS
- 4.3Medium
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2025-3863
At a glance
CVE-2025-3863 is a medium-severity Missing Authorization vulnerability in the Post Carousel Slider for Elementor WordPress plugin, affecting versions <= 1.6.0. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 1.7.0; sites on affected versions should update now. Disclosed June 2025, reported by Peter Thaleikis.
Vulnerability Overview
The Post Carousel Slider for Elementor plugin for WordPress is vulnerable to improper authorization due to a missing capability check on the process_wbelps_promo_form() function in all versions up to, and including, 1.6.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to trigger the plugin’s support‐form handler to send arbitrary emails to the site’s support address.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.
CWE-862: Missing Authorization
Post Carousel Slider for Elementor <= 1.6.0 carries this weakness at process_wbelps_promo_form(), and reaching it takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Post Carousel Slider for Elementor the fix is 1.7.0: builds <= 1.6.0 are affected, anything from 1.7.0 onward is not.
Remediation
Update to version 1.7.0, or a newer patched version
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Post Carousel Slider for Elementor 1.7.0 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Post Carousel Slider for Elementor
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