CVE-2026-42385

Profile Builder Pro <= 3.15.0 - Unauthenticated Stored Cross-Site Scripting

2026-04-27 00:00

Strategic Overview

Status: Patched in 3.15.1
Affected Plugin: Profile Builder Pro
Affected Version: <= 3.15.0
CVSS: 7.2High
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2026-42385

View all Profile Builder Pro vulnerabilities

At a glance

CVE-2026-42385 is a high-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Profile Builder Pro WordPress plugin, affecting versions <= 3.15.0. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.15.1; sites on affected versions should update now. Disclosed April 2026, reported by João Pedro Soares de Alcântara.

Vulnerability Overview

The Profile Builder Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.15.0 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.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in Profile Builder Pro <= 3.15.0 takes no account at all. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Profile Builder Pro the fix is 3.15.1: builds <= 3.15.0 are affected, anything from 3.15.1 onward is not.

Remediation

Update to version 3.15.1, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Profile Builder Pro 3.15.1 closes this, and updating the plugin is the step that ends it.

Firewall
Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-42385 https://www.wordfence.com/threat-intel/vulnerabilities/id/5d479a7a-52a6-48bd-8216-935e22ddb3ed https://nvd.nist.gov/vuln/detail/CVE-2026-42385

Related records

Same weakness class

6.1CVE-2024-22142: Profile Builder Pro <= 3.10.0 Reflected XSSCVE-2024-22142

Other vulnerabilities in Profile Builder Pro

CVSS Vector

7.2

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

This record contains material that is subject to copyright

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/