CVE-2026-39435 HIGH

CVE-2026-39435: WordPress CformsII plugin <= 15.1.3 - Cross Site Scripting (XSS) vulnerability

Vendor Bgermann

Product CformsII

Weakness CWE-79 · XSS

Published June 15, 2026

Last update June 15, 2026

View on NVD All CVEs

CVSS base score

7.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Unauthenticated Cross Site Scripting (XSS) in CformsII <= 15.1.3 versions.

Explanation of Vulnerability in Simple Terms

02Summary

CformsII versions up to 15.1.3 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages. An attacker can craft a malicious link or page that, when visited by a site user, executes arbitrary JavaScript in the victim's browser. This can lead to session hijacking, credential theft, or defacement. The vulnerability requires user interaction and affects the scope beyond the vulnerable component.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in a user's browser when they visit a crafted page or click a malicious link.

Potential impact on your site

04Site Impact

Site visitors' sessions and credentials can be compromised if they interact with attacker-controlled content.

Conditions required to exploit

05Prerequisites

A site user must visit an attacker-controlled page or click a malicious link; no authentication required.

Key dates

06Disclosure timeline

June 15, 2026 CVE published

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-39435 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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