CVE-2025-34077

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.

PUBLISHED Reserved 2025-04-15 | Published 2025-07-09 | Updated 2026-05-15 | Assigner VulnCheck

Problem types

CWE-434 Unrestricted Upload of File with Dangerous Type

CWE-306 Missing Authentication for Critical Function

CWE-94 Improper Control of Generation of Code ('Code Injection')

Product status

Credits

Lotfi13-DZ finder

References

github.com/...oits/unix/webapp/wp_pie_register_bypass_rce.rb exploit

www.exploit-db.com/exploits/50395 exploit

pieregister.com/ product

github.com/GTSolutions/Pie-Register product

wordpress.org/plugins/pie-register/ product

vulncheck.com/advisories/wordpress-pie-register-plugin-rce third-party-advisory

cve.org (CVE-2025-34077)

nvd.nist.gov (CVE-2025-34077)

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