PeproDev Ultimate Profile Solutions 1.9.1 - 7.5.2 - Authentication Bypass to Account Takeover
Strategic Overview
- Status
- Patched in 8.0.0
- Affected Plugin
- PeproDev Ultimate Profile Solutions
- Affected Version
1.9.1 – 7.5.2- CVSS
- 9.8Critical
- Weakness type
- CWE-288 · Authentication Bypass Using an Alternate Path or Channel
- CVE
CVE-2025-3844
At a glance
CVE-2025-3844 is a critical-severity Authentication Bypass Using an Alternate Path or Channel vulnerability in the PeproDev Ultimate Profile Solutions WordPress plugin, affecting versions 1.9.1 – 7.5.2. 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 8.0.0; sites on affected versions should update now. Disclosed May 2025, reported by kr0d.
Vulnerability Overview
The PeproDev Ultimate Profile Solutions plugin for WordPress is vulnerable to Authentication Bypass in versions 1.9.1 to 7.5.2. This is due to handel_ajax_req() function not having proper restrictions on the change_user_meta functionality that makes it possible to set a OTP code and subsequently log in with that OTP code. This makes it possible for unauthenticated attackers to login as other users on the site, including administrators.
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-288: Authentication Bypass Using an Alternate Path or Channel
PeproDev Ultimate Profile Solutions 1.9.1 – 7.5.2 carries this weakness at handel_ajax_req(), and reaching it takes a caller who can reach the endpoint. Authentication bypass through an alternate path means the application has a second route to a protected action that skips the checks the primary route performs.
The protection on the main path becomes irrelevant, because the attacker simply uses the route that never asks. For PeproDev Ultimate Profile Solutions the fix is 8.0.0: builds 1.9.1 – 7.5.2 are affected, anything from 8.0.0 onward is not.
Remediation
Update to version 8.0.0, 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: PeproDev Ultimate Profile Solutions 8.0.0 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in PeproDev Ultimate Profile Solutions
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