Highland Software Custom Role Manager <= 1.0.0 - Authenticated (Subscriber+) Privilege Escalation
Strategic Overview
- Status
- Patched in 1.0.1
- Affected Plugin
- Highland Software Custom Role Manager
- Affected Version
<= 1.0.0- CVSS
- 8.8High
- Weakness type
- CWE-269 · Improper Privilege Management
- CVE
CVE-2026-7106
At a glance
CVE-2026-7106 is a high-severity Improper Privilege Management vulnerability in the Highland Software Custom Role Manager WordPress plugin, affecting versions <= 1.0.0. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 1.0.1; sites on affected versions should update now. Disclosed April 2026, reported by 0xHerc.
Vulnerability Overview
The Highland Software Custom Role Manager plugin for WordPress is vulnerable to Privilege Escalation in versions up to and including 1.0.0. This is due to insufficient authorization checks in the hscrm_save_user_roles() function, which is hooked to the personal_options_update action accessible by any authenticated user. This makes it possible for authenticated attackers, with Subscriber-level access or higher, to potentially modify user roles via the profile update form.
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. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-269: Improper Privilege Management
Highland Software Custom Role Manager <= 1.0.0 carries this weakness at hscrm_save_user_roles(), and reaching it takes an account at Subscriber level or above. Improper privilege management means the code lets an account end up with capabilities its role should not have.
It converts a low-privileged account into an administrative one, which makes every other restriction on the site irrelevant. For Highland Software Custom Role Manager the fix is 1.0.1: builds <= 1.0.0 are affected, anything from 1.0.1 onward is not.
Remediation
Update to version 1.0.1, 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: Highland Software Custom Role Manager 1.0.1 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
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