CVE-2025-58873 Overview
CVE-2025-58873 is a stored Cross-Site Scripting (XSS) vulnerability in the Pushe Web Push Notification plugin (pushe-webpush) for WordPress. The flaw affects all versions up to and including 0.5.0. The plugin fails to properly neutralize user-supplied input during web page generation, allowing an authenticated attacker with high privileges to inject persistent JavaScript payloads. The injected scripts execute in the browser context of any user who views the affected page. The issue is tracked under CWE-79 and requires user interaction to trigger.
Critical Impact
Authenticated attackers can store malicious JavaScript that executes against site visitors and administrators, enabling session theft, credential harvesting, and administrative action abuse.
Affected Products
- Pushe Web Push Notification plugin (pushe-webpush) for WordPress
- All versions from initial release through 0.5.0
- WordPress sites running the vulnerable plugin configuration
Discovery Timeline
- 2025-09-05 - CVE-2025-58873 published to NVD
- 2026-10-05 - Last updated in NVD database
Technical Details for CVE-2025-58873
Vulnerability Analysis
The Pushe Web Push Notification plugin accepts input through administrative interfaces without applying sufficient output encoding or input sanitization. When the plugin renders stored data back to the page, the browser interprets attacker-controlled content as executable HTML and JavaScript. This produces a stored XSS condition, which persists across sessions and affects every user who loads the compromised view.
Exploitation requires an authenticated session with elevated privileges and a victim interaction, such as viewing a dashboard page. Because the scope changes after exploitation, the injected script operates against resources beyond the vulnerable component, including the authenticated browser session of other administrators or site visitors.
Root Cause
The root cause is improper neutralization of input during web page generation. The plugin does not apply WordPress sanitization helpers such as sanitize_text_field() on input nor escaping helpers such as esc_html() or esc_attr() on output. Stored values flow directly into the rendered HTML, breaking the separation between data and code.
Attack Vector
The attack vector is network-based and leverages a privileged account to persist a payload inside plugin-managed content. Once stored, the payload fires whenever a user loads the affected page. Impact includes stealing authentication cookies, triggering privileged administrative actions through forged requests, redirecting users to attacker-controlled sites, and distributing malware to visitors.
No verified exploitation code is publicly available for CVE-2025-58873. See the Patchstack XSS Vulnerability Report for additional technical context.
Detection Methods for CVE-2025-58873
Indicators of Compromise
- Unexpected <script> tags, onerror= handlers, or javascript: URIs stored in plugin configuration tables within the WordPress database.
- Outbound HTTP requests from administrator browsers to unknown domains immediately after loading plugin administrative pages.
- New or modified WordPress administrator accounts created shortly after plugin pages are accessed.
Detection Strategies
- Audit the WordPress wp_options and plugin-specific tables for values containing HTML or JavaScript syntax where plain text is expected.
- Review web server access logs for POST requests to plugin administrative endpoints submitted by non-administrator sessions or unusual user agents.
- Monitor for Content Security Policy (CSP) violation reports originating from WordPress administrative paths.
Monitoring Recommendations
- Enable logging of WordPress administrative actions through a security plugin or SIEM forwarder to capture configuration changes.
- Alert on anomalous privilege escalations or role changes within the WordPress user database.
- Track outbound DNS queries from administrative workstations to detect data exfiltration channels established via injected scripts.
How to Mitigate CVE-2025-58873
Immediate Actions Required
- Disable or remove the Pushe Web Push Notification plugin until a patched version is confirmed available by the vendor.
- Rotate credentials for all WordPress administrator accounts that may have accessed the plugin interface since installation.
- Review stored plugin data and remove any entries containing script tags or event handler attributes.
Patch Information
No fixed version has been published in the referenced advisory at the time of writing. Monitor the Patchstack advisory for an updated release beyond version 0.5.0.
Workarounds
- Restrict access to the WordPress administrative interface using IP allowlists at the web server or WAF layer.
- Deploy a strict Content Security Policy that disallows inline scripts and limits script sources to trusted origins.
- Enforce the principle of least privilege by limiting the number of accounts with roles capable of modifying plugin configuration.
# Configuration example: deactivate the vulnerable plugin via WP-CLI
wp plugin deactivate pushe-webpush
wp plugin uninstall pushe-webpush
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.