PT-2025-28828 · WordPress · Wordpress Pie Register

Lotfi13-Dz · Published 2025-07-09 · Updated 2025-07-28 · CVE-2025-34077

Positive Technologies (AI Summary)

CVSS v4.0

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: WordPress Pie Register plugin versions ≤ 3.7.1.4

Description: An authentication bypass issue exists 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.

Recommendations: For WordPress Pie Register plugin versions ≤ 3.7.1.4, update to a version greater than 3.7.1.4 to resolve the issue. As a temporary workaround, consider disabling the plugin upload functionality to minimize the risk of exploitation. Restrict access to the login endpoint to prevent unauthorized access.

Exploit

Fix

RCE

Missing Authentication

Unrestricted File Upload

Code Injection

Weakness Enumeration

CWE-306

CWE-434

CWE-94

Related Identifiers

CVE-2025-34077

Affected Products

Wordpress Pie Register

References · 13

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/webapp/wp_pie_register_bypass_rce.rb · Exploit
• 🔥 https://exploit-db.com/exploits/52370 · Exploit
• 🔥 https://exploit-db.com/exploits/50395 · Exploit
• https://osv.dev/vulnerability/CVE-2025-34077 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-34077 · Security Note
• https://github.com/GTSolutions/Pie-Register · Note
• https://pieregister.com · Note
• https://wordpress.org/plugins/pie-register · Note
• https://twitter.com/VulmonFeeds/status/1942842000803336663 · Twitter Post
• https://twitter.com/0xgh057r3c0n/status/1949931337210646969 · Twitter Post
• https://t.me/cvenotify/128120 · Telegram Post
• https://twitter.com/CVEnew/status/1942924482836066458 · Twitter Post
• https://vulncheck.com/advisories/wordpress-pie-register-plugin-rce · Note