WP Cost Estimation & Payment Forms Builder (E&P Forms) <= 10.5.97 - Unauthenticated Stored Cross-Site Scripting via 'customerInfos' Parameter

2026-07-08 00:00

Luc Huynh from Noventiq RedTeam

Strategic Overview

Status

Patched in 10.6.1

Affected PluginWP Cost Estimation & Payment Forms Builder

Affected Version<= 10.5.97

CVSS7.2High

CVECVE-2026-9253

View all WP Cost Estimation & Payment Forms Builder vulnerabilities

Vulnerability Overview

The WP Cost Estimation & Payment Forms Builder (E&P Forms) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'customerInfos' parameter in all versions up to, and including, 10.5.97 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

REMEDIATION: Update to version 10.6.1, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2026-9253 https://www.wordfence.com/threat-intel/vulnerabilities/id/2bf0832c-13ed-4e53-9847-d5d2110eb3f8

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

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