CVE-2025-24726 in HT Conctact Form 7 Plugin
Summary
by MITRE • 01/24/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in HT Plugins HT Conctact Form 7 allows Stored XSS. This issue affects HT Conctact Form 7: from n/a through 1.2.1.
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Analysis
by VulDB Data Team • 02/08/2025
The vulnerability CVE-2025-24726 represents a critical cross-site scripting flaw in the HT Conctact Form 7 plugin, which falls under the CWE-79 category of Improper Neutralization of Input During Web Page Generation. This weakness enables attackers to inject malicious scripts into web pages viewed by other users, creating a persistent security risk that can compromise user sessions and data integrity. The vulnerability specifically affects versions of the plugin ranging from the initial release through version 1.2.1, indicating a long-standing issue that has not been properly addressed in the affected codebase.
The technical flaw manifests when the plugin fails to properly sanitize or escape user input during the generation of web pages, allowing malicious payloads to be stored and subsequently executed in the context of other users' browsers. This stored XSS vulnerability occurs because the plugin does not implement adequate input validation or output encoding mechanisms when processing form submissions. Attackers can exploit this by submitting malicious script code through contact form fields, which are then stored in the plugin's database or processing system and executed whenever the affected web page is loaded by other users.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable sophisticated attacks including session hijacking, credential theft, and redirection to malicious sites. Attackers can leverage the stored XSS to steal cookies, modify page content, or redirect users to phishing sites that mimic legitimate web applications. The persistent nature of stored XSS means that once the malicious payload is injected, it continues to affect users until the vulnerability is patched or the malicious content is removed from the system. This makes the vulnerability particularly dangerous in environments where multiple users interact with the affected web application over extended periods.
Organizations utilizing the HT Conctact Form 7 plugin should immediately implement mitigations including updating to the latest available version that addresses this vulnerability, implementing input validation and output encoding measures, and conducting thorough security reviews of all user input processing functions. The ATT&CK framework categorizes this vulnerability under T1531 Credential Access and T1059 Command and Scripting Interpreter, highlighting the potential for attackers to use the vulnerability to establish persistent access and execute malicious commands. Security teams should also consider implementing web application firewalls and content security policies as additional defensive measures to prevent exploitation of this class of vulnerability.