CVE-2025-15692 Overview
CVE-2025-15692 is a Stored Cross-Site Scripting (XSS) vulnerability in the Icegram Express WordPress plugin before version 5.8.6. The plugin fails to properly escape a list description setting before rendering it inside an HTML attribute. An authenticated user with the Administrator role or higher can inject persistent JavaScript that executes when other privileged users view the affected page. The flaw is tracked under [CWE-79] and requires user interaction to trigger the payload.
Critical Impact
Attackers with administrative access can plant persistent JavaScript in the list description field, enabling session-context script execution against other administrators in multisite or delegated environments.
Affected Products
- Icegram Express WordPress plugin versions prior to 5.8.6
Discovery Timeline
- 2026-09-02 - CVE-2025-15692 published to NVD
- 2026-09-02 - Last updated in NVD database
Technical Details for CVE-2025-15692
Vulnerability Analysis
The vulnerability resides in the list description setting handled by the Icegram Express plugin. The plugin writes the stored value into an HTML attribute without applying attribute-context escaping. An administrator can submit a payload that breaks out of the attribute boundary and introduces attacker-controlled script content. The injected payload persists in the database and executes each time the affected settings view is rendered.
Because the payload runs in the browser context of any user viewing the page, an attacker can perform actions such as issuing authenticated requests, modifying plugin configuration, or exfiltrating nonces. The requirement for high privileges limits mass exploitation but remains relevant in multi-administrator WordPress deployments and managed hosting environments where role separation is enforced.
Root Cause
The root cause is missing output encoding for user-supplied data placed inside an HTML attribute. The plugin does not call an attribute-safe escaping function such as esc_attr() before echoing the list description value, allowing attribute-breakout characters like quotes and angle brackets to be interpreted as markup.
Attack Vector
Exploitation is remote and requires an authenticated administrator to store the payload plus a second privileged user to load the affected view. See the WPScan Vulnerability Report for the technical write-up.
Detection Methods for CVE-2025-15692
Indicators of Compromise
- Unexpected HTML or JavaScript content stored in Icegram Express list description fields within the WordPress database.
- Administrator sessions issuing anomalous REST or admin-ajax requests shortly after loading Icegram Express settings pages.
- Newly created WordPress users or modified plugin options coinciding with visits to the list configuration screen.
Detection Strategies
- Query the wp_options and Icegram Express plugin tables for values containing <script, onerror=, onload=, or attribute-breakout sequences such as "><.
- Inspect web server access logs for POST requests to Icegram Express admin endpoints followed by unusual outbound requests from admin browsers.
- Baseline plugin version deployments and alert when Icegram Express versions below 5.8.6 are detected on managed WordPress hosts.
Monitoring Recommendations
- Log and review WordPress administrator actions, including plugin setting changes, using an audit-logging plugin or reverse-proxy telemetry.
- Forward WordPress admin activity and web server logs to a centralized analytics platform for correlation across sites.
- Alert on responses containing reflected script markers from WordPress admin URLs associated with the plugin.
How to Mitigate CVE-2025-15692
Immediate Actions Required
- Upgrade the Icegram Express plugin to version 5.8.6 or later on every affected WordPress site.
- Audit existing list description fields for stored HTML or JavaScript content and sanitize any suspicious entries.
- Review recent administrator account activity for unauthorized changes since the vulnerable version was installed.
Patch Information
The vendor addressed the issue in Icegram Express version 5.8.6 by applying proper attribute-context escaping to the list description output. Confirm the fixed release is deployed by checking the plugin version in the WordPress admin plugins screen or via WP-CLI with wp plugin list.
Workarounds
- Restrict the Administrator role to a minimal set of trusted users until the patched version is installed.
- Enforce a strict Content Security Policy on the WordPress admin interface to limit inline script execution.
- Deploy a web application firewall rule that blocks HTML attribute-breakout patterns in requests to Icegram Express admin endpoints.
# Update Icegram Express to the patched release using WP-CLI
wp plugin update icegram-express --version=5.8.6
wp plugin list --name=icegram-express --fields=name,version,status
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
