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CVE-2026-84258— click5 CRM add-on to Ninja Forms <= 1.0.1 - Unauthenticated Stored XSS via post_notifications

Quick assessment

Affected
Unknown click5 CRM add-on to Ninja Forms
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ninja Forms WordPress 插件中的 click5 CRM 附加组件（版本 1.0.1 及之前）存在安全漏洞。该漏洞源于插件未对通过未认证端点提交的输入内容进行适当的过滤和转义处理，便直接将其输出到管理页面，从而导致存储型跨站脚本攻击（Stored XSS）。攻击者可利用此漏洞，对具有高权限的用户（如管理员）实施攻击。

AI Predicted 8.1 Difficulty: Easy EPSS 0.17% · P5

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown click5 CRM add-on to Ninja Forms ≤ 1.0.1 affected
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I. Basic Information for CVE-2026-84258

Vulnerability Information
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Vulnerability Title
click5 CRM add-on to Ninja Forms <= 1.0.1 - Unauthenticated Stored XSS via post_notifications
Source: CVE Program / CVE List V5
Vulnerability Description
The click5 CRM add-on to Ninja Forms WordPress plugin through 1.0.1 does not sanitise and escape content submitted through an unauthenticated endpoint before outputting it back in an admin page, leading to Stored XSS which could be used against high privilege users such as admin.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown click5 CRM add-on to Ninja Forms 0 ~ 1.0.1 -

II. Public POCs for CVE-2026-84258

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III. Intelligence Information for CVE-2026-84258

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Other References for CVE-2026-84258 (1)

Same Patch Batch · Unknown · 2026-10-11 · 63 CVEs total

CVE-2026-84251 click5 CRM add-on to Ninja Forms <= 1.0.1 - Unauthenticated Arbitrary Options Update
CVE-2026-104680 Envira Gallery < 1.16.2 - Multisite Subsite Admin+ Arbitrary Plugin Installation via Onboa
CVE-2026-104681 Envira Gallery < 1.16.2 - Author+ Non-Public Post Title and Excerpt Disclosure via Gallery
CVE-2026-104682 Envira Gallery < 1.16.2 - Contributor Missing Authorization via Convert Gallery REST Route
CVE-2026-104028 Anton Extensions <= 1.2.2 - Unauthenticated Arbitrary File Upload to RCE
CVE-2026-81649 Fundiin <= 3.4.0 - Unauthenticated Payment Gateway Settings Update and Credential Disclosu
CVE-2026-81155 Robo Gallery < 5.2.6 - Author+ Stored XSS via Gallery Search Label
CVE-2026-81154 Robo Gallery < 5.2.6 - Author+ Stored XSS via Image Alt Text
CVE-2026-81420 Tcard WP <= 1.8.0 - Unauthenticated SQLi via group_id Parameter
CVE-2026-81156 Robo Gallery < 5.2.6 - Contributor+ Stored XSS via Gallery Settings
CVE-2026-14854 WooCommerce Bookings < 3.11.0 - Unauthenticated Denial of Service
CVE-2026-84252 click5 CRM add-on to WPForms <= 1.0.3 - Unauthenticated Arbitrary Options Update
CVE-2026-84260 click5 CRM add-on to Gravity Forms <= 1.0.3 - Unauthenticated Stored XSS via post_notifica
CVE-2026-84259 click5 CRM add-on to WPForms <= 1.0.3 - Unauthenticated Stored XSS via post_notifications
CVE-2026-84253 click5 CRM add-on to Gravity Forms <= 1.0.3 - Unauthenticated Arbitrary Options Update
CVE-2026-84261 click5 CRM add-on to Contact Form 7 <= 1.0.4 - Unauthenticated Stored XSS via post_notific
CVE-2026-84254 click5 CRM add-on to Contact Form 7 <= 1.0.4 - Unauthenticated Arbitrary Options Update
CVE-2026-84737 Freeton WP <= 1.0.0 - Unauthenticated Account Takeover via 'secod' Parameter
CVE-2026-84734 Mindstien Quick Login <= 1.0 - Unauthenticated Administrator Account Takeover via 'mql_pas
CVE-2026-85121 Insurify <= 1.0 - Unauthenticated Arbitrary Option Creation and Overwrite via saveemailtem

Showing top 20 of 63 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: click5 CRM add-on to Ninja Forms
Same vendor: Unknown

V. Comments for CVE-2026-84258

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