CVE-2021-24647

HIGH EXPLOITED NUCLEI

Pie Register < 3.7.1.6 - Unauthenticated User Impersonation via Social Login

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2021-24647 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 1 public exploit from researchers including RandomRobbieBF. A Nuclei detection template is also available.

AI-analyzed exploit summary This repository contains a functional exploit for CVE-2021-24647, an unauthenticated arbitrary login vulnerability in the Pie Register WordPress plugin (versions < 3.7.1.6). The exploit automates version detection, user enumeration via REST API, and session hijacking by crafting malicious login requests.

Description

The Registration Forms – User profile, Content Restriction, Spam Protection, Payment Gateways, Invitation Codes WordPress plugin before 3.1.7.6 has a flaw in the social login implementation, allowing unauthenticated attacker to login as any user on the site by only knowing their user ID or username

Exploits (1)

nomisec WORKING POC 1 stars
by RandomRobbieBF · remote
https://github.com/RandomRobbieBF/CVE-2021-24647

This repository contains a functional exploit for CVE-2021-24647, an unauthenticated arbitrary login vulnerability in the Pie Register WordPress plugin (versions < 3.7.1.6). The exploit automates version detection, user enumeration via REST API, and session hijacking by crafting malicious login requests.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Pie Register WordPress plugin < 3.7.1.6
No auth needed
Prerequisites: Target WordPress site with vulnerable Pie Register plugin · REST API access to enumerate users
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Nuclei Templates (1)

Pie Register < 3.7.1.6 - Unauthenticated Arbitrary Login
HIGHVERIFIEDby DhiyaneshDK

References (1)

Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://wpscan.com/vulnerability/40d347b1-b86e-477d-b4c6-da105935ce37

Scores

CVSS v3 8.1
EPSS 0.0968
EPSS Percentile 94.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

VulnCheck KEV 2021-10-11
CWE
CWE-287
Status published
Products (1)
genetechsolutions/pie_register < 3.7.1.6
Published Nov 08, 2021
Tracked Since Feb 18, 2026