CVE-2025-34077
WordPress Pie Register Plugin ≤ 3.7.1.4 Authentication Bypass RCE
- Published
- Jul 9, 2025
- Updated
- May 15, 2026
- Assigning CNA
- VulnCheck
- Evidence observed
- Jul 22, 2025
Primary CVSS
nvd · CVSS 4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XModerate · next 30 days
- Percentile
- 96.9%
- Model date
- Oct 15, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
modules/exploits/unix/webapp/wp_pie_register_bypass_rce.rb
Metasploit Framework modulesDeclared conditions
- platform: PHP($.exploit_unix/webapp/wp_pie_register_bypass_rce.platform)
- verification: check_declared($.exploit_unix/webapp/wp_pie_register_bypass_rce.check)
http/cves/2025/CVE-2025-34077.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: dsl($.matchers[*].type)
Responsible use
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