Contact Form DB <= 2.8.26 - Authenticated Cross-Site Scripting
Strategic Overview
- Status
- Patched in 2.8.28
- Affected Plugin
- Contact Form DB
- Affected Version
<= 2.8.26- CVSS
- 6.5Medium
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE-2015-2040
At a glance
CVE-2015-2040 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Contact Form DB WordPress plugin, affecting versions <= 2.8.26. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high integrity impact). Exploitation requires no authentication. The issue is fixed in version 2.8.28; sites on affected versions should update now. Disclosed February 2015.
Vulnerability Overview
Cross-site scripting (XSS) vulnerability in the Contact Form DB (aka CFDB and contact-form-7-to-database-extension) plugin 2.8.26 for WordPress allows remote attackers to inject arbitrary web script or HTML via the submit_time parameter in the CF7DBPluginSubmissions page to wp-admin/admin.php.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site. A successful exploit has high impact on integrity.
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Reaching this weakness in Contact Form DB <= 2.8.26 takes any authenticated account. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.
Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Contact Form DB the fix is 2.8.28: builds <= 2.8.26 are affected, anything from 2.8.28 onward is not.
Remediation
Update to version 2.8.28, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Contact Form DB: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Contact Form DB 2.8.28 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
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