CVE-2024-10260: Tripetto WordPress Plugin XSS Vulnerability

CVE-2024-10260 Overview

The Tripetto plugin for WordPress contains a Stored Cross-Site Scripting (XSS) vulnerability in its file upload handling. All versions up to and including 8.0.11 are affected. The root cause is insufficient input sanitization and output escaping in the attachment handling logic. Unauthenticated attackers can inject arbitrary web scripts that execute when a user accesses the uploaded file. The vulnerability is tracked under CWE-79 and requires user interaction to trigger the payload in a victim's browser session.

Critical Impact
Unauthenticated attackers can inject persistent JavaScript payloads via file uploads, enabling session theft, credential harvesting, and administrative account compromise when victims access the affected files.

Affected Products

Tripetto plugin for WordPress, all versions through 8.0.11
Vendor: tripetto
CPE: cpe:2.3:a:tripetto:tripetto:*:*:*:*:*:wordpress:*:*

Discovery Timeline

2024-11-15 - CVE-2024-10260 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-10260

Vulnerability Analysis

Tripetto is a WordPress form-building plugin that supports file attachments as part of form submissions. The vulnerable code path resides in lib/attachments.php, which handles uploaded files exposed through the plugin. Because the plugin fails to sanitize file metadata on input and does not escape output when the file is served, an attacker can supply content or filenames containing JavaScript. When another user, including a site administrator, subsequently accesses the file, the payload executes in the browser under the site's origin.

The vulnerability is exploitable without authentication because the form submission surface is publicly reachable on sites using Tripetto forms. Successful exploitation can lead to session hijacking, forced administrative actions via CSRF chaining, or delivery of secondary payloads through the trusted WordPress origin.

Root Cause

The plugin does not apply adequate input sanitization on uploaded attachment data and omits contextual output escaping when rendering or serving the file. This combination allows attacker-supplied content to be interpreted as active script in a browser context, matching the CWE-79 pattern.

Attack Vector

An unauthenticated remote attacker submits a crafted file through a Tripetto form. The malicious payload is stored server-side as an attachment. When a legitimate user, typically an administrator reviewing form responses, opens or previews the file, the injected script executes in that user's session context. Refer to the Wordfence Vulnerability Report and the WordPress Plugin Code File for the vulnerable source location.

Detection Methods for CVE-2024-10260

Indicators of Compromise

Uploaded files in the Tripetto attachments directory with filenames or contents containing <script>, onerror=, onload=, or javascript: payloads
Unexpected outbound requests from administrator browsers to attacker-controlled domains shortly after reviewing form submissions
Newly created WordPress administrator accounts or modified user roles without a corresponding audit trail
Web server access logs showing form submissions with unusual multipart file payloads from unauthenticated sources

Detection Strategies

Scan the Tripetto attachments directory for files whose names or contents include HTML or JavaScript syntax
Review WordPress access logs for POST requests to Tripetto form endpoints followed by administrative GETs to attachment URLs
Inspect the installed plugin version and flag any deployment at or below 8.0.11
Deploy a web application firewall rule to inspect multipart uploads to Tripetto endpoints for script tags and event handler attributes

Monitoring Recommendations

Alert on administrator sessions that trigger anomalous outbound HTTP requests immediately after accessing form submissions
Monitor WordPress wp_users and wp_usermeta tables for unexpected role changes
Continuously enumerate installed plugin versions across managed WordPress instances and correlate against CVE feeds

How to Mitigate CVE-2024-10260

Immediate Actions Required

Update the Tripetto plugin to a version later than 8.0.11 as soon as the vendor publishes a fixed release
Audit all files stored in the Tripetto attachments directory and remove any submissions containing HTML or JavaScript content
Restrict access to form submission review pages to trusted administrators only
Rotate credentials for administrator accounts that may have accessed malicious attachments

Patch Information

At the time of publication, review the Wordfence Vulnerability Report for the current fixed version. Apply the vendor update through the WordPress plugin management interface and verify the installed version after upgrade.

Workarounds

Temporarily disable the Tripetto plugin on production sites until a patched version is deployed
Configure the web server to serve files from the Tripetto attachments directory with Content-Disposition: attachment and X-Content-Type-Options: nosniff headers to prevent inline browser rendering
Deploy a web application firewall rule that blocks uploads containing <script, onerror=, or javascript: patterns to Tripetto form endpoints
Implement a restrictive Content-Security-Policy header on the WordPress site to limit script execution sources

bash

# Nginx configuration to force download of Tripetto attachments
location ~* ^/wp-content/uploads/tripetto/ {
    add_header Content-Disposition "attachment" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Content-Security-Policy "default-src 'none'" always;
}