Vulnerability details

CVE-2026-84261

click5 CRM add-on to Contact Form 7

click5 CRM add-on to Contact Form 7 <= 1.0.4 - Unauthenticated Stored XSS via post_notifications

CVSS 3.1

8.8High

Official description

The click5 CRM add-on to Contact Form 7 WordPress plugin through 1.0.4 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.

CVSS scores

Score	Version	Source	Vector
8.8High	3.1	CISA ADP / Vulnrichment (CISA-ADP)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
—	click5 CRM add-on to Contact Form 7	v ≤ 1.0.4	CVEProject cvelistV5 (CNA)

References and advisories

https://wpscan.com/vulnerability/91689a2c-a282-496b-b295-435647a0bf7d/ exploitvdb-entrytechnical-description

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Details

Published: 2026-10-11
Last updated: 2026-10-11
State: Published
Assigner (CNA): WPScan

Exploit prediction (EPSS)

0.29%

Probability of exploitation in 30 days

22.1%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

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