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Fencer Vulns
critical 10.0

CVE-2025-34077 in the critical feed json

WordPress Pie Register Plugin ≤ 3.7.1.4 Authentication Bypass RCE

published 2025-07-09 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-20764

cvss
10.0
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
16.5%
EPSS 16.5% chance of exploitation in 30 days, percentile 97%
public exploits
2
Metasploit, Exploit-DB, plus a Nuclei check

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.

Timeline

  1. First public exploit (Metasploit exploit/unix/webapp/wp_pie_register_bypass_rce)
  2. Published

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
16 mo ago

Exploit prediction

16.51% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
CNA 4.0 10.0 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
CNA 4.0 10.0 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:X

Affected products

  • Genetech Solutions WordPress Pie Register Plugin

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type
  • CWE-306 Missing Authentication for Critical Functionality
  • CWE-94 Improper Control of Generation of Code
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.