CVE-2026-25432 in Omnipress Plugin
Summary
by MITRE • 02/19/2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in omnipressteam Omnipress omnipress allows Stored XSS.This issue affects Omnipress: from n/a through <= 1.6.7.
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Analysis
by VulDB Data Team • 02/19/2026
The vulnerability identified as CVE-2026-25432 represents a critical cross-site scripting weakness within the Omnipress plugin for WordPress systems. This security flaw falls under the CWE-79 category of Cross-Site Scripting, specifically manifesting as a stored XSS vulnerability that enables attackers to inject malicious scripts into web pages viewed by other users. The vulnerability exists within the omnipressteam Omnipress plugin and impacts versions ranging from the initial release through version 1.6.7, indicating a substantial attack surface that has remained unaddressed for an extended period.
The technical implementation of this vulnerability stems from inadequate input sanitization and output encoding mechanisms within the plugin's web page generation processes. When users submit content through the plugin's interface, the system fails to properly neutralize potentially malicious input before storing and subsequently rendering it within web pages. This allows attackers to embed script payloads that execute in the context of other users' browsers, creating a persistent threat vector that can affect any individual interacting with the compromised website. The stored nature of this vulnerability means that malicious scripts remain embedded within the application's database and continue to execute whenever affected pages are accessed, rather than requiring each victim to be individually targeted with fresh payloads.
The operational impact of this vulnerability extends beyond simple script execution, creating significant risks for organizations utilizing the Omnipress plugin. Attackers can leverage this weakness to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious sites, or even establish persistent backdoors within the compromised environment. The vulnerability particularly threatens websites that rely heavily on user-generated content or administrative functions, as it enables attackers to gain elevated privileges and potentially compromise entire web applications. Given that this affects versions up to 1.6.7, organizations running these plugin versions face ongoing exposure to sophisticated attack campaigns targeting the stored XSS vector.
Mitigation strategies for CVE-2026-25432 require immediate action to address the root cause through proper input validation and output encoding practices. Organizations should prioritize upgrading to the latest available version of the Omnipress plugin where this vulnerability has been patched, as this represents the most effective remediation approach. Additionally, implementing comprehensive content security policies and regular security audits of web applications can help detect and prevent similar vulnerabilities from emerging in other components. The vulnerability aligns with ATT&CK technique T1566.001 for initial access through malicious web content, making it particularly dangerous in environments where user interaction with web applications is common. Security teams should also consider implementing web application firewalls and regular penetration testing to identify potential XSS vulnerabilities across their entire application portfolio, as this represents a fundamental weakness in web application security architecture that requires systematic addressing through both immediate patching and long-term defensive measures.