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Pie Register <= 3.7.1.5 — Authentication Bypass

CVE-2021-24647Published · Updated

Action summary

Affected: <3.7.1.6Update to 3.7.1.6 or newer

All remediation steps
Watch plugin
Severity
High8.1
CVSS
8.1
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:H Attack complexity
High
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-287 Improper Authentication
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Pie Register – User Registration, Profiles & Content Restriction pie-register

  1. Affected< 3.7.1.6
  2. Patched in3.7.1.6

Update to 3.7.1.6 or newer.

You are affected if you run < 3.7.1.6. Version 3.7.1.6 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Pie Register – User Registration, Profiles & Content Restriction.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 3.7.1.6, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Pie Register – User Registration, Profiles & Content Restriction to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to AyeCode Ltd.

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 & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Pie Register – User Registration, Profiles & Content Restriction

All 29
More vulnerabilities in Pie Register – User Registration, Profiles & Content Restriction
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via 'first_name' Parameter via Comment Avatar
≤3.8.4.16Update to 3.8.4.17
CVE-2026-119158
Medium4.3Missing Authorization
≤3.8.4.15Update to 3.8.4.16
CVE-2026-96963
Medium5.3Missing Authorization
≤3.8.4.15Update to 3.8.4.16
CVE-2026-96961
High7.2Unauthenticated Stored Cross-Site Scripting
≤3.8.4.15Update to 3.8.4.16
CVE-2026-119488
Medium5.3Unauthenticated Information Exposure
≤3.8.4.13Update to 3.8.4.14
CVE-2026-103345

Timeline

  1. CVE published

    Severity high, CVSS 8.1

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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