CVE-2025-58607 Overview
CVE-2025-58607 is a stored Cross-Site Scripting (XSS) vulnerability [CWE-79] in the GDPR Info Cookie Notice & Consent Banner for GDPR & CCPA Compliance WordPress plugin. The flaw stems from improper neutralization of user-supplied input during web page generation. Attackers with low-privilege access can inject persistent JavaScript payloads that execute in the browser of any user who loads the affected page. The vulnerability affects all versions of the cookie-notice-and-consent-banner plugin up to and including 1.7.11.
Critical Impact
Authenticated attackers can store malicious scripts that execute in visitors' and administrators' browsers, enabling session theft, credential harvesting, and administrative account takeover.
Affected Products
- GDPR Info Cookie Notice & Consent Banner for GDPR & CCPA Compliance plugin for WordPress
- Versions from n/a through 1.7.11 (inclusive)
- WordPress sites using the cookie-notice-and-consent-banner plugin
Discovery Timeline
- 2025-09-03 - CVE-2025-58607 published to the National Vulnerability Database
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-58607
Vulnerability Analysis
The vulnerability is a stored XSS flaw in the Cookie Notice & Consent Banner plugin. The plugin fails to sanitize and escape user-controlled input before rendering it within HTML output. Because the payload is stored server-side, it executes every time a visitor loads the affected page. The scope change indicator in the CVSS vector reflects that injected scripts execute in a browser context outside the vulnerable component, affecting site visitors and administrators alike.
Exploitation requires an authenticated user with permission to modify plugin-managed content. This typically corresponds to contributor, author, or editor roles within WordPress. User interaction is required, as another user must view the page containing the injected payload for the script to execute.
Root Cause
The root cause is missing or insufficient input validation and output encoding on fields controlled by the plugin. When plugin data is echoed back into the DOM without escaping, arbitrary HTML and JavaScript are interpreted by the browser. This is a classic instance of [CWE-79], where the boundary between data and code within the response body is not enforced.
Attack Vector
An authenticated attacker submits a payload containing HTML or JavaScript through a plugin input field. The payload is persisted in the WordPress database. When a subsequent visitor or administrator loads a page that renders this content, the script executes with the privileges of the victim's session. Consequences include session cookie theft, forced administrative actions via CSRF-like flows, redirection to attacker-controlled sites, and delivery of secondary payloads.
No verified exploit code is publicly available. Refer to the Patchstack XSS Vulnerability Report for advisory details.
Detection Methods for CVE-2025-58607
Indicators of Compromise
- Unexpected <script>, onerror, onload, or javascript: strings persisted within plugin settings, cookie banner text, or related WordPress database rows.
- Outbound requests from administrator browsers to unfamiliar domains shortly after loading pages that render the cookie banner.
- New or modified WordPress administrator accounts, plugin installations, or theme edits following visits to pages containing plugin-rendered content.
Detection Strategies
- Audit the WordPress wp_options table and plugin-specific tables for entries containing HTML event handlers or script tags.
- Deploy a web application firewall ruleset that inspects POST requests to WordPress admin endpoints for XSS payload signatures.
- Review web server access logs for authenticated POST requests to plugin configuration endpoints followed by anomalous GET traffic on public pages.
Monitoring Recommendations
- Monitor WordPress user activity logs for content modifications made by contributor and author accounts.
- Enforce Content Security Policy (CSP) headers and alert on CSP violation reports originating from pages that embed the cookie banner.
- Track plugin version inventory across managed WordPress instances to identify hosts still running cookie-notice-and-consent-banner at version 1.7.11 or earlier.
How to Mitigate CVE-2025-58607
Immediate Actions Required
- Identify all WordPress sites running the Cookie Notice & Consent Banner plugin and confirm the installed version.
- Deactivate the plugin on affected sites until a patched release is installed, or restrict low-privilege account access to plugin configuration.
- Audit contributor, author, and editor accounts for unauthorized activity and rotate credentials for any account showing anomalous behavior.
- Review recent plugin content changes and remove any entries containing script tags or JavaScript event handlers.
Patch Information
As of the last NVD update on 2026-06-17, the advisory lists affected versions through 1.7.11. Administrators should consult the Patchstack XSS Vulnerability Report and the plugin's WordPress.org listing for the latest fixed version and upgrade instructions.
Workarounds
- Remove or disable the plugin until a patched version is confirmed and deployed.
- Restrict WordPress role capabilities so that only trusted administrators can modify plugin settings and rendered content.
- Deploy a Content Security Policy that restricts inline script execution and limits allowed script sources to trusted origins.
- Place a web application firewall in front of the WordPress site with rules to filter XSS patterns in authenticated POST requests.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
