UserPro <= 4.9.27 - Privilege Escalation
Strategic Overview
- Status
- Patched in 4.9.28
- Affected Plugin
- UserPro - Community and User Profile WordPress Plugin
- Affected Version
< 4.9.28- CVSS
- 9.8Critical
- Weakness type
- CWE-269 · Improper Privilege Management
- CVE
CVE pending
At a glance
This record tracks a critical-severity Improper Privilege Management vulnerability in the UserPro - Community and User Profile WordPress Plugin WordPress plugin, affecting versions < 4.9.28. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 4.9.28; sites on affected versions should update now. Disclosed September 2018, reported by Noman Riffat.
Vulnerability Overview
The UserPro plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 4.9.27. This makes it possible for attackers to register with an administrative role and perform otherwise restricted actions.
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 privileges on the target site, 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
Reaching this weakness in UserPro - Community and User Profile WordPress Plugin < 4.9.28 takes a caller who can reach the endpoint. 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 UserPro - Community and User Profile WordPress Plugin the fix is 4.9.28: builds < 4.9.28 are affected, anything from 4.9.28 onward is not.
Remediation
Update to version 4.9.28, 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: UserPro - Community and User Profile WordPress Plugin 4.9.28 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in UserPro - Community and User Profile WordPress Plugin
- 10.0UserPro <= 4.9.20 Privilege Escalation
- 9.8CVE-2024-56214: Userpro <= 5.1.9 Local File Inclusion
CVE-2024-56214 - 9.8CVE-2024-35700: UserPro Account Takeover to Privilege Escalation
CVE-2024-35700 - 9.8CVE-2023-2437: UserPro <= 5.1.1 Authentication Bypass to Administrator
CVE-2023-2437 - 9.8CVE-2023-2449: UserPro <= 5.1.1 Insecure Password Reset Mechanism
CVE-2023-2449 - 9.8CVE-2017-16562: UserPro <= 4.9.17 Authentication Bypass
CVE-2017-16562 - 8.8CVE-2023-2440: UserPro <= 5.1.1 CSRF to Privilege Escalation
CVE-2023-2440 - 8.8CVE-2023-6009: UserPro <= 5.1.4 Privilege Escalation
CVE-2023-6009
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