# CVE-2025-34077

## Summary

- **CVE ID:** CVE-2025-34077
- **Severity:** CRITICAL
- **CVSS Score:** 10 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H)
- **CWE:** CWE-434, CWE-306, CWE-94
- **Published:** Jul 9, 2025
- **Last Modified:** May 15, 2026

## Description

An authentication bypass vulnerability exists in the WordPress Pie Register plugin ≤ 3.7.1.4 that allows unauthenticated attackers to impersonate arbitrary users by submitting a crafted POST request to the login endpoint. By setting social_site=true and manipulating the user_id_social_site parameter, an attacker can generate a valid WordPress session cookie for any user ID, including administrators. Once authenticated, the attacker may exploit plugin upload functionality to install a malicious plugin containing arbitrary PHP code, resulting in remote code execution on the underlying server.

## Affected Products

- Genetech Solutions — WordPress Pie Register Plugin (*)
- Genetech Solutions — WordPress Pie Register Plugin (0)

## References

- [CNA](https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/webapp/wp_pie_register_bypass_rce.rb)
- [CNA](https://www.exploit-db.com/exploits/50395)
- [CNA](https://pieregister.com/)
- [CNA](https://github.com/GTSolutions/Pie-Register)
- [CNA](https://wordpress.org/plugins/pie-register/)
- [CNA](https://vulncheck.com/advisories/wordpress-pie-register-plugin-rce)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 15.08%
- **EPSS Percentile:** 96.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._