CVE-2025-48261 Overview
CVE-2025-48261 is a sensitive information disclosure vulnerability in the MultiVendorX (dc-woocommerce-multi-vendor) plugin for WordPress. The flaw allows unauthenticated remote attackers to retrieve embedded sensitive data from affected sites. The issue is classified under CWE-201 (Insertion of Sensitive Information Into Sent Data) and impacts all MultiVendorX plugin versions up to and including 4.2.22.
MultiVendorX powers multi-vendor marketplaces built on WooCommerce, making it a common component on e-commerce sites. Exposed data can include marketplace, vendor, or customer information embedded in plugin-generated responses.
Critical Impact
Unauthenticated network attackers can retrieve sensitive data from any WordPress site running MultiVendorX <= 4.2.22 without user interaction.
Affected Products
- MultiVendorX plugin (dc-woocommerce-multi-vendor) for WordPress, versions through 4.2.22
- WordPress sites running WooCommerce multi-vendor marketplaces using MultiVendorX
- Vendor and customer data stored within the MultiVendorX plugin context
Discovery Timeline
- 2025-06-09 - CVE-2025-48261 published to NVD
- 2026-04-29 - Last updated in NVD database
Technical Details for CVE-2025-48261
Vulnerability Analysis
The vulnerability arises because MultiVendorX embeds sensitive information into data sent to clients. An unauthenticated remote attacker can issue HTTP requests over the network and retrieve confidential fields that should never leave the server. The flaw requires no privileges and no user interaction, and exploitation does not affect integrity or availability — only confidentiality is broken.
According to the Patchstack advisory, the issue affects MultiVendorX versions through 4.2.22. The EPSS score is 0.307% at the 54th percentile, indicating low observed exploitation activity at the time of analysis.
Root Cause
The root cause maps to CWE-201: the plugin places sensitive data into responses or output that is sent to actors who should not receive it. This typically occurs when developers include database fields, internal identifiers, configuration values, or user PII in REST API responses, embedded JSON, or rendered page output without filtering by caller authorization.
Attack Vector
The attack vector is network-based and requires no authentication. An attacker queries an exposed MultiVendorX endpoint or page that includes sensitive embedded data, then parses the response to extract values such as vendor details, order metadata, or other marketplace information. The Patchstack advisory should be consulted for the exact endpoints involved. See the Patchstack WordPress Vulnerability Report for technical specifics.
No public proof-of-concept is currently available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.
Detection Methods for CVE-2025-48261
Indicators of Compromise
- Unauthenticated HTTP requests to MultiVendorX plugin endpoints (paths under /wp-json/ or /wp-admin/admin-ajax.php referencing dc-woocommerce-multi-vendor or mvx)
- Repeated GET requests from a single source enumerating vendor IDs or order identifiers
- Outbound responses from the WordPress site containing PII or vendor data fields larger than expected
Detection Strategies
- Inspect web server access logs for anonymous requests to MultiVendorX REST routes returning HTTP 200 with large payloads
- Run authenticated and unauthenticated crawls of plugin endpoints and diff the JSON responses to identify fields exposed without authorization
- Apply web application firewall rules that flag responses containing email addresses, phone numbers, or order IDs returned to unauthenticated sessions
Monitoring Recommendations
- Centralize WordPress and reverse-proxy logs in a SIEM and alert on bursts of anonymous requests to plugin endpoints
- Track installed MultiVendorX versions across all WordPress instances and alert on any version <= 4.2.22
- Monitor for new public proof-of-concept code referencing CVE-2025-48261 or dc-woocommerce-multi-vendor
How to Mitigate CVE-2025-48261
Immediate Actions Required
- Identify every WordPress site running the MultiVendorX (dc-woocommerce-multi-vendor) plugin and record the installed version
- Upgrade MultiVendorX to a version newer than 4.2.22 once the vendor patch is applied, per the Patchstack advisory
- Review recent access logs for unauthenticated requests to MultiVendorX endpoints and assess whether sensitive data may have been retrieved
Patch Information
The vulnerability affects MultiVendorX versions through 4.2.22. Administrators should update to the latest available release of dc-woocommerce-multi-vendor from the WordPress plugin repository. Refer to the Patchstack advisory linked above for the fixed version and changelog details.
Workarounds
- Deploy a web application firewall rule that blocks unauthenticated access to MultiVendorX REST and AJAX endpoints until the plugin is upgraded
- Temporarily deactivate the MultiVendorX plugin on sites where patching is not immediately possible
- Restrict access to /wp-json/ namespaces associated with the plugin to authenticated sessions at the reverse proxy layer
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
