CVE-2025-14028
Stored XSS in Contact Us Simple Form WordPress Plugin
Publication date: 2026-01-07
Last updated on: 2026-01-07
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| unknown_vendor | contact_us_simple_form | to 1.0 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the Contact Us Simple Form plugin for WordPress. It occurs because the plugin does not properly sanitize and escape user-supplied input in the admin settings. As a result, an authenticated attacker with administrator-level access can inject malicious scripts that execute whenever a user views the affected page.
How can this vulnerability impact me? :
The vulnerability allows an attacker with admin privileges to inject malicious scripts that run in the context of the website. This can lead to unauthorized actions such as stealing user credentials, hijacking user sessions, defacing the website, or performing other malicious activities that compromise the integrity and security of the site and its users.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection of this vulnerability involves checking if the Contact Us Simple Form plugin version 1.0 or earlier is installed and active on your WordPress site. Since the vulnerability is a Stored Cross-Site Scripting (XSS) via admin settings, you can look for suspicious scripts injected in the admin settings pages or in pages generated by the plugin. There are no specific commands provided in the resources, but general steps include: 1) Inspect the plugin files, especially contact-us-simple-form.php, for unsanitized input handling. 2) Use WordPress CLI commands to list installed plugins and their versions, e.g., `wp plugin list`. 3) Search the database or admin pages for injected scripts or unusual content in the plugin's settings. 4) Monitor HTTP requests and responses for suspicious script payloads related to the plugin's pages. Since no explicit detection commands are provided, these general approaches apply. [2, 3]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include: 1) Update the Contact Us Simple Form plugin to a version that fixes the vulnerability, if available. 2) If no update is available, disable or uninstall the plugin to prevent exploitation. 3) Restrict administrator-level access to trusted users only, as exploitation requires admin privileges. 4) Review and sanitize any injected scripts or malicious content in the plugin's settings or affected pages. 5) Implement additional security measures such as Web Application Firewalls (WAF) to block malicious payloads. 6) Monitor logs for suspicious activity related to the plugin. Since the vulnerability arises from insufficient input sanitization and output escaping, applying patches or removing the vulnerable plugin is critical. [2, 3]