Pie Register <= 3.8.4.16 - Unauthenticated Stored Cross-Site Scripting via 'first_name' Parameter via Comment Avatar

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-119158
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-07 04:17:13 UTC
Updated2026-11-07 04:17:13 UTC
DescriptionThe Pie Register – User Registration, Profiles & Content Restriction plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'first_name' parameter in all versions up to, and including, 3.8.4.16 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable when public registration is enabled and the registration form includes a Profile Picture field; the attacker registers via the publicly accessible form (nonce is emitted to unauthenticated visitors) to store the payload, then logs in as the newly created Subscriber to post a comment that triggers delivery to all page visitors.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Genetechproducts Pie Register User Registration Profiles Content Restriction affected 3.8.4.16 semver Not specified

References

ReferenceSourceLinkTags
www.wordfence.com/threat-intel/vulnerabilities/id/dd9a4fa5-17b0-41dc-94f9-b07ad... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/pie-register/tags/3.8.4.14/pie-register.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3783288/pie-register/trunk/pie-register.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/pie-register/tags/3.8.4.14/pie-register.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/pie-register/tags/3.8.4.14/pie-register.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Chi Trung Huynh (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-10-30T10:14:02.000ZVendor Notified
CNA2026-11-06T15:16:20.000ZDisclosed

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