CVE-2026-25447: 
WordPress vulnerability analysis and mitigation

CVE-2026-25447 is a code injection vulnerability (CWE-94) in the Widget Wrangler WordPress plugin, developed by Jonathan Daggerhart, that allows authenticated attackers with high privileges to execute arbitrary code remotely. The vulnerability affects Widget Wrangler versions up to and including 2.3.9. It was published on March 25, 2026, and assigned by Patchstack. The CVSS v3.1 base score is 9.1 (Critical), reflecting network-based exploitation with changed scope and high impact across confidentiality, integrity, and availability (Feedly, Patchstack).

The vulnerability is classified as CWE-94 (Improper Control of Generation of Code / Code Injection), meaning the plugin fails to properly sanitize or restrict user-controlled input that is subsequently used in code generation or evaluation. An authenticated attacker with administrator-level privileges can craft malicious input through the plugin's interface to inject and execute arbitrary PHP or server-side code. The changed scope in the CVSS vector indicates that successful exploitation can impact resources beyond the plugin itself, potentially affecting the entire WordPress installation and underlying server. No public proof-of-concept or detailed technical write-up has been published as of the time of this report (Feedly, Patchstack).

Successful exploitation allows an authenticated attacker to execute arbitrary code on the WordPress server, resulting in full compromise of confidentiality, integrity, and availability. An attacker could read sensitive data (database credentials, user information), modify site content, install backdoors or web shells, and potentially pivot to other systems on the same hosting environment. The changed scope means the impact extends beyond the plugin itself to the broader WordPress installation and server infrastructure (Feedly).

As of the time of reporting, there is no known public proof-of-concept exploit and no evidence of active in-the-wild exploitation. The EPSS score is approximately 0.044%, indicating a low current probability of exploitation in the near term. The vulnerability requires high-privilege authentication (administrator level), which limits the attack surface compared to unauthenticated vulnerabilities. No threat actor attribution or CISA KEV catalog listing has been identified (Feedly).

1. Reconnaissance: Identify WordPress sites running the Widget Wrangler plugin (version ≤ 2.3.9) using tools like WPScan, Shodan, or manual inspection of plugin directories (/wp-content/plugins/widget-wrangler/).
2. Obtain Credentials: Acquire administrator-level credentials through phishing, credential stuffing, or brute force against the WordPress login page (/wp-login.php).
3. Access Plugin Settings: Log in to the WordPress admin dashboard and navigate to the Widget Wrangler plugin configuration panel.
4. Inject Malicious Code: Insert a crafted PHP payload into a plugin input field that is improperly handled, leveraging the code injection flaw (CWE-94) to have the server evaluate the injected code.
5. Achieve Remote Code Execution: Trigger the injected code by saving or activating the malicious widget configuration, resulting in arbitrary command execution on the server under the web server's process context.
6. Post-Exploitation: Use the RCE foothold to deploy a web shell, exfiltrate data, escalate privileges, or establish persistence on the compromised server (Feedly, Patchstack).

• Logs: WordPress admin logs showing unusual activity from administrator accounts in the Widget Wrangler plugin settings; PHP error logs with unexpected code evaluation errors or warnings.
• File System: Newly created or modified PHP files in /wp-content/plugins/widget-wrangler/ or /wp-content/uploads/; presence of web shells (e.g., files named shell.php, cmd.php, or obfuscated PHP scripts).
• Network: Unexpected outbound connections from the web server process to external IPs; unusual HTTP POST requests to WordPress admin endpoints related to Widget Wrangler configuration.
• Process: Unusual child processes spawned by the web server (e.g., bash, curl, wget, python) following admin panel interactions with the Widget Wrangler plugin.

No patched version of Widget Wrangler has been confirmed as available at the time of this report. The recommended immediate action is to deactivate and remove the Widget Wrangler plugin from all WordPress installations running version 2.3.9 or earlier. Site administrators should monitor the official WordPress plugin repository and the Patchstack database for a patched release and apply it promptly when available. As an additional measure, restrict WordPress admin access using IP allowlisting, enforce strong administrator credentials, and enable multi-factor authentication to reduce the risk of credential compromise (Feedly, Patchstack).

The vulnerability received coverage from The Hacker Wire, which published an article highlighting the critical code injection risk in the Widget Wrangler plugin. The Tanzania Computer Emergency Response Team (TZ-CERT) issued a security advisory (TZCERT-SA-26-0132) warning about the vulnerability. Wordfence included it in their weekly WordPress vulnerability report for the period of March 16–22, 2026. Social media activity was noted on Mastodon and Bluesky, primarily from automated CVE tracking accounts (Feedly).