CVE-2025-26989

High

Published: 03 March 2025

Published

03 March 2025

Modified

23 April 2026

KEV Added

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Patch

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CVSS Score 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

EPSS Score 0.0020 42.1th percentile

Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-26989 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Softdiscover Zigaform. Its CVSS base score is 7.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 42.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 3 other techniques. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-15 Information Output Filtering good match

prevent

Requires filtering of information outputs to prevent stored malicious scripts from being rendered and executed in users' browsers during web page generation.

SI-10 Information Input Validation good match

prevent

Mandates validation of user inputs to block malicious scripts from being accepted and stored by the form builder plugin.

SI-2 Flaw Remediation good match

prevent

Directly addresses remediation of the specific flaw in the Zigaform plugin that fails to neutralize inputs, via timely patching and updates.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1059.007 JavaScript Execution

Adversaries may abuse various implementations of JavaScript for execution.

attack.mitre.org →

T1185 Browser Session Hijacking Collection

Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.

attack.mitre.org →

T1539 Steal Web Session Cookie Credential Access

An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.

attack.mitre.org →

Why these techniques?

Stored XSS in public-facing WordPress plugin directly enables T1190 exploitation of the vulnerable application; allows arbitrary JavaScript execution in victim browsers (T1059.007) for browser session hijacking (T1185) and stealing web session cookies (T1539).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

NVD Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in softdiscover Zigaform zigaform-form-builder-lite allows Stored XSS.This issue affects Zigaform: from n/a through <= 7.4.2.

Deeper analysisAI

CVE-2025-26989 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Stored Cross-site Scripting (XSS) under CWE-79, in the softdiscover Zigaform zigaform-form-builder-lite WordPress plugin. This issue affects all versions of the plugin from n/a through 7.4.2 inclusive. The vulnerability was published on 2025-03-03.

The CVSS v3.1 base score is 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L), indicating network accessibility, low attack complexity, no required privileges, and user interaction needed for exploitation, with changed scope and low impacts to confidentiality, integrity, and availability. Unauthenticated attackers can submit malicious input that is stored and later rendered without neutralization on web pages, executing scripts in the browsers of users (such as site administrators) who view the affected content.

The Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/zigaform-form-builder-lite/vulnerability/wordpress-zigaform-form-builder-lite-plugin-7-4-2-cross-site-scripting-xss-vulnerability?_s_id=cve details the vulnerability in the Zigaform Form Builder Lite plugin up to version 7.4.2.