CVE-2026-25422: 
WordPress vulnerability analysis and mitigation

CVE-2026-25422 is a Cross-Site Request Forgery (CSRF) vulnerability in the Popularis Extra WordPress plugin developed by Themes4WP. It affects all versions of the plugin up to and including 1.2.10. The vulnerability was published on February 19, 2026, and carries a CVSS v3.1 base score of 5.4 (Medium) (Feedly).

The vulnerability is classified as CWE-352 (Cross-Site Request Forgery), meaning the plugin fails to properly validate or enforce anti-CSRF tokens on sensitive state-changing requests. An attacker can craft a malicious web page or link that, when visited by an authenticated WordPress administrator or privileged user, triggers unauthorized actions within the plugin on their behalf. No authentication is required by the attacker; only user interaction (victim visiting a malicious page) is needed to trigger the exploit (Feedly, Patchstack).

Successful exploitation results in low-severity integrity and availability impacts, as an attacker can induce a logged-in user to perform unintended plugin actions such as modifying settings or triggering plugin functions without their knowledge. There is no direct confidentiality impact. The scope is limited to the affected WordPress installation, with no evidence of lateral movement potential beyond the site's plugin configuration (Feedly).

No public proof-of-concept exploit code or in-the-wild exploitation has been reported for this vulnerability. The EPSS score is extremely low at 0.000080 (approximately 0.008%), indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, and no threat actor attribution has been identified (Feedly).

1. Reconnaissance: Identify a WordPress site running the Popularis Extra plugin version 1.2.10 or earlier, which can be detected via the plugin's readme.txt file at /wp-content/plugins/popularis-extra/readme.txt.
2. Craft malicious request: Identify a state-changing action exposed by the plugin (e.g., a settings update form) that lacks CSRF token validation.
3. Create malicious page: Build an HTML page containing a hidden form or JavaScript that automatically submits a forged POST request to the target WordPress site's admin endpoint associated with the vulnerable plugin action.
4. Deliver to victim: Trick an authenticated WordPress administrator into visiting the malicious page via phishing, a malicious link, or a compromised third-party site.
5. Action executes: The victim's browser automatically submits the forged request with their session credentials, causing the plugin to perform the unauthorized action on their behalf (Feedly).

• Logs: Unexpected POST requests to WordPress admin endpoints associated with the Popularis Extra plugin (e.g., wp-admin/admin-post.php or wp-admin/admin-ajax.php) originating from unusual referrer URLs or external domains in the web server access logs.
• File System: Unexpected changes to plugin configuration or WordPress options table entries related to the Popularis Extra plugin settings.
• Network: Requests to plugin action endpoints with a Referer header pointing to an external or unknown domain, which may indicate a CSRF attack in progress.

Users should update the Popularis Extra plugin to a version beyond 1.2.10 that includes CSRF protection fixes, once a patched release is made available by Themes4WP. In the interim, site administrators can restrict access to the WordPress admin panel by IP allowlisting, enforce strong authentication (e.g., two-factor authentication), and educate administrators to avoid clicking unknown links while logged into WordPress. Monitoring plugin update channels and the Patchstack database for a patched release is recommended (Patchstack).