CVE-2026-61956: ووسلام Plugin CSRF Vulnerability

CVE-2026-61956 Overview

CVE-2026-61956 is a Cross-Site Request Forgery (CSRF) vulnerability [CWE-352] in the sync-basalam WordPress plugin, also known as ووسلام (همگام سازی ووکامرس و باسلام), developed by hamsalam. The flaw affects all plugin versions up to and including 1.9.1. An attacker can trick an authenticated user into submitting a forged request that performs state-changing actions in the plugin without the user's consent. Exploitation requires user interaction, typically by luring the victim to a malicious page while authenticated to the target WordPress site.

Critical Impact
Successful exploitation allows attackers to modify plugin state or WooCommerce synchronization configuration, potentially compromising store integrity and product data.

Affected Products

WordPress plugin sync-basalam (ووسلام – همگام سازی ووکامرس و باسلام) by hamsalam
All versions from unspecified initial release through 1.9.1
WordPress sites integrating WooCommerce with the Basalam marketplace

Discovery Timeline

2026-07-13 - CVE-2026-61956 published to NVD
2026-07-13 - Last updated in NVD database

Technical Details for CVE-2026-61956

Vulnerability Analysis

The sync-basalam plugin exposes one or more state-changing endpoints that lack proper CSRF protection. Standard WordPress mitigations for CSRF rely on nonces generated via wp_create_nonce() and verified through check_admin_referer() or wp_verify_nonce(). The affected plugin either omits these checks or validates them incorrectly. An attacker crafts a malicious HTML page containing a form or JavaScript that auto-submits a request to the vulnerable endpoint. When an authenticated administrator visits the page, the browser transmits their session cookies, and the request executes with their privileges.

Root Cause

The root cause is missing or insufficient anti-CSRF token validation on privileged action handlers within the plugin. Per [CWE-352], the application accepts and processes requests without verifying that they originated from a legitimate user interaction on a trusted page.

Attack Vector

The attack vector is network-based and requires user interaction. An attacker delivers a malicious link through phishing, forum posts, or a compromised website. When an authenticated WordPress user with sufficient privileges follows the link, the forged request executes against the plugin's vulnerable endpoint. No authentication credentials are required from the attacker, since the victim's browser supplies them automatically.

No verified public proof-of-concept code is available. See the Patchstack WordPress Vulnerability Advisory for advisory details.

Detection Methods for CVE-2026-61956

Indicators of Compromise

Unexpected modifications to WooCommerce product synchronization settings or Basalam integration configuration
HTTP POST requests to sync-basalam plugin endpoints with Referer headers pointing to external, untrusted domains
Administrator account activity originating from unusual IP addresses shortly after visiting external links

Detection Strategies

Review WordPress access logs for requests to wp-admin/admin.php?page=sync-basalam or plugin AJAX handlers lacking a valid _wpnonce parameter
Correlate administrator browser activity with plugin configuration changes to identify forged requests
Deploy a Web Application Firewall (WAF) rule to flag state-changing requests to the plugin without matching nonces or with cross-origin Referer values

Monitoring Recommendations

Enable WordPress audit logging to capture plugin setting changes, user session events, and administrator actions
Monitor outbound traffic from the WooCommerce store to the Basalam API for anomalous synchronization events
Alert on new or modified product listings, price changes, or inventory adjustments made outside normal business hours

How to Mitigate CVE-2026-61956

Immediate Actions Required

Identify all WordPress sites running the sync-basalam plugin at version 1.9.1 or earlier
Deactivate the plugin until a patched version is installed if administrators cannot avoid untrusted browsing sessions
Instruct WordPress administrators to log out of the admin panel when not actively managing the site

Patch Information

At the time of publication, no fixed version is identified in the advisory. Monitor the Patchstack WordPress Vulnerability Advisory and the plugin repository for a release above 1.9.1 that adds nonce verification.

Workarounds

Restrict access to /wp-admin/ by IP allowlist through the web server or WAF configuration
Enforce use of a dedicated browser or browser profile for WordPress administration to reduce cross-site request exposure
Deploy a WAF rule that blocks POST requests to plugin endpoints when the Referer header does not match the site's own domain

bash

# Example nginx rule to block cross-origin POSTs to the plugin endpoint
location ~ ^/wp-admin/admin(-ajax|\.php)$ {
    if ($request_method = POST) {
        set $csrf_block "";
        if ($http_referer !~* "^https?://your-domain\.com/") {
            set $csrf_block "1";
        }
        if ($csrf_block = "1") {
            return 403;
        }
    }
}