CVE-2026-24597: WpDevArt Organization Chart CSRF Flaw

CVE-2026-24597 Overview

CVE-2026-24597 is a Cross-Site Request Forgery (CSRF) vulnerability [CWE-352] affecting the WpDevArt Organization chart plugin for WordPress. The flaw impacts all versions of the plugin up to and including 1.7.5. An attacker can craft a malicious web page that triggers unintended state-changing actions when an authenticated WordPress user visits it. Exploitation requires user interaction, such as clicking a crafted link while logged in to the target site. The vulnerability does not directly expose data confidentiality but can allow limited integrity impact on plugin-managed content.

Critical Impact
Authenticated WordPress users can be tricked into performing unauthorized actions in the Organization chart plugin through crafted requests originating from attacker-controlled pages.

Affected Products

WpDevArt Organization chart WordPress plugin
All versions from n/a through 1.7.5
WordPress sites running the vulnerable plugin

Discovery Timeline

2026-05-25 - CVE-2026-24597 published to the National Vulnerability Database
2026-05-26 - Last updated in NVD database

Technical Details for CVE-2026-24597

Vulnerability Analysis

The vulnerability is a Cross-Site Request Forgery weakness in the Organization chart plugin developed by WpDevArt. CSRF occurs when an application accepts state-changing requests without verifying that the request was intentionally submitted by the authenticated user. The plugin handles one or more administrative actions without enforcing a valid anti-CSRF nonce or equivalent origin check. As a result, a forged request submitted from an external site is processed with the privileges of the victim's active WordPress session. The flaw is exploitable over the network and requires the victim to interact with attacker-supplied content.

Root Cause

The root cause is missing or improperly validated CSRF protection on plugin request handlers. WordPress provides nonce primitives such as wp_nonce_field() and check_admin_referer() to bind requests to a user session. The vulnerable plugin code paths in versions through 1.7.5 either omit nonce generation or fail to validate submitted nonces server-side before executing the requested action.

Attack Vector

An attacker hosts a malicious page containing a hidden form or auto-submitting request targeting the vulnerable plugin endpoint on a WordPress site. When a logged-in administrator or privileged user visits the page, the browser submits the request with the user's session cookies. The server processes the request as if it originated from the legitimate user, completing the attacker-intended action. No credential theft is required, and the action executes with the victim's authorization context.

No public proof-of-concept code is currently referenced in the advisory. Refer to the Patchstack Vulnerability Report for additional technical context.

Detection Methods for CVE-2026-24597

Indicators of Compromise

Unexpected modifications to Organization chart plugin data or configuration without corresponding admin user activity in audit logs
HTTP POST requests to plugin endpoints with Referer headers pointing to external, untrusted domains
Administrator session activity initiating plugin state changes immediately after visiting third-party links

Detection Strategies

Inspect web server access logs for plugin action requests where the Referer header is missing or originates outside the site's own domain
Correlate WordPress audit log entries for Organization chart changes with user browsing telemetry from endpoint and proxy logs
Alert on POST requests to plugin handlers that lack expected _wpnonce parameters

Monitoring Recommendations

Enable a WordPress audit logging plugin to track configuration and content changes performed by privileged users
Forward web server, WAF, and WordPress logs to a centralized SIEM for cross-source correlation
Monitor administrator account activity for anomalous request patterns following email or social media interactions

How to Mitigate CVE-2026-24597

Immediate Actions Required

Identify all WordPress sites running the WpDevArt Organization chart plugin and confirm installed versions
Disable or deactivate the plugin on sites running version 1.7.5 or earlier until a patched release is verified
Require administrators to log out of WordPress admin sessions when not actively performing administrative tasks

Patch Information

At the time of publication, the advisory lists the vulnerability as affecting Organization chart through version 1.7.5. Site operators should monitor the Patchstack Vulnerability Report and the plugin's WordPress.org listing for an updated release that introduces nonce validation on the affected handlers, and apply the fixed version immediately upon availability.

Workarounds

Restrict access to the WordPress administrative interface using IP allowlisting at the web server or WAF layer
Deploy a Web Application Firewall rule that blocks requests to plugin endpoints when the Referer or Origin header is missing or does not match the site domain
Enforce the SameSite=Lax or SameSite=Strict attribute on WordPress authentication cookies to reduce cross-site request risk
Train administrators to avoid clicking untrusted links while authenticated to the WordPress dashboard

bash

# Example nginx configuration to block cross-origin POST requests to the plugin endpoint
location ~* /wp-admin/admin-ajax\.php {
    if ($request_method = POST) {
        set $block 1;
    }
    if ($http_origin ~* ^https?://(www\.)?example\.com$) {
        set $block 0;
    }
    if ($block = 1) {
        return 403;
    }
}