CVE-2025-22704 Overview
CVE-2025-22704 is a reflected Cross-Site Scripting (XSS) vulnerability in the Abinav Thakuri WordPress Signature plugin (wordpress-signature). The flaw affects all plugin versions up to and including 0.1. It stems from improper neutralization of user input during web page generation, classified under [CWE-79]. Attackers can craft malicious links that execute arbitrary JavaScript in a victim's browser when clicked. Successful exploitation requires user interaction and can lead to session theft, credential harvesting, or unauthorized actions within the WordPress site context.
Critical Impact
Reflected XSS enabling arbitrary script execution in the victim's browser with a scope change, impacting confidentiality, integrity, and availability of the affected WordPress site.
Affected Products
- Abinav Thakuri WordPress Signature plugin (wordpress-signature)
- All versions up to and including 0.1
- WordPress sites with the plugin installed and active
Discovery Timeline
- 2025-02-03 - CVE-2025-22704 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-22704
Vulnerability Analysis
The WordPress Signature plugin fails to sanitize or encode user-supplied input before reflecting it in HTTP responses. When the application echoes attacker-controlled parameters into the rendered HTML, the browser interprets injected payloads as executable script. The vulnerability requires a targeted user, typically an authenticated site administrator, to click a crafted URL. Because the scope changes upon exploitation, injected scripts can affect resources beyond the vulnerable component's security boundary.
Root Cause
The plugin does not apply output encoding or contextual sanitization on request parameters reflected into the DOM. WordPress provides helper functions such as esc_html(), esc_attr(), and wp_kses() for safe rendering, but the vulnerable code paths omit these calls. This omission allows raw HTML and JavaScript delivered via query strings to be rendered verbatim.
Attack Vector
Exploitation is network-based and requires user interaction. An attacker constructs a URL containing a JavaScript payload in a vulnerable parameter, then delivers it through phishing, forum posts, or malicious referrers. When a logged-in WordPress user opens the link, the payload executes in the site's origin. The attacker can then steal session cookies, perform authenticated actions on behalf of the victim, or pivot to further attacks against the WordPress backend.
Refer to the Patchstack Vulnerability Report for additional technical context.
Detection Methods for CVE-2025-22704
Indicators of Compromise
- Web server access logs containing URL parameters with <script>, javascript:, onerror=, or onload= patterns targeting plugin endpoints
- Outbound requests from administrator browsers to unfamiliar external domains shortly after opening links
- Unexpected creation of WordPress administrator accounts or modification of plugin/theme files
Detection Strategies
- Deploy a Web Application Firewall (WAF) rule set that flags reflected XSS payloads in query strings and POST bodies
- Review WordPress audit logs for anomalous administrative actions correlated with recent phishing attempts
- Perform authenticated vulnerability scans against the site to enumerate installed plugin versions and flag wordpress-signature <= 0.1
Monitoring Recommendations
- Alert on HTTP requests to plugin URIs containing HTML control characters such as <, >, and " in reflected parameters
- Monitor browser Content Security Policy (CSP) violation reports for unauthorized inline script execution
- Track admin session activity for unusual IP addresses, user agents, or geographic locations
How to Mitigate CVE-2025-22704
Immediate Actions Required
- Deactivate and remove the wordpress-signature plugin from all WordPress installations until a patched release is confirmed
- Rotate WordPress administrator passwords and invalidate active sessions to contain potential credential exposure
- Enable a WAF with XSS payload filtering in front of the WordPress site
Patch Information
No vendor patch is currently referenced in the CVE data. The plugin is vulnerable through version 0.1 with no fixed version identified. Site owners should remove the plugin or replace it with a maintained alternative.
Workarounds
- Restrict administrative access to trusted IP ranges via .htaccess or reverse proxy rules
- Implement a strict Content Security Policy that disallows inline scripts and unauthorized external script sources
- Train administrators to avoid clicking unsolicited links referencing their WordPress site parameters
# Example: disable the vulnerable plugin via WP-CLI
wp plugin deactivate wordpress-signature
wp plugin delete wordpress-signature
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
