CVE-2025-48080 Overview
CVE-2025-48080 is a stored Cross-Site Scripting (XSS) vulnerability in the Uncanny Toolkit for LearnDash WordPress plugin developed by Uncanny Owl. The flaw stems from improper neutralization of user-supplied input during web page generation [CWE-79]. It affects all versions of uncanny-learndash-toolkit up to and including 3.7.0.2. Authenticated attackers with low-level privileges can inject malicious scripts that execute in the browsers of users who view the affected content. The scope change indicates that exploitation can affect resources beyond the vulnerable component, such as the browser context of administrators or other site users.
Critical Impact
Authenticated attackers can inject persistent JavaScript payloads that execute in victims' browsers, enabling session theft, administrative account takeover, and further compromise of WordPress-based LearnDash learning platforms.
Affected Products
- Uncanny Owl Uncanny Toolkit for LearnDash (uncanny-learndash-toolkit)
- All versions from n/a through 3.7.0.2
- WordPress sites running LearnDash with the affected plugin installed
Discovery Timeline
- 2025-05-16 - CVE-2025-48080 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-48080
Vulnerability Analysis
The vulnerability is a stored XSS flaw classified under [CWE-79]. The plugin fails to properly sanitize and escape user-controlled input before rendering it in generated web pages. An authenticated attacker with at least contributor-level access can submit crafted input containing JavaScript payloads. The plugin persists this input and later renders it without sufficient neutralization. When another user, including a site administrator, loads the affected page, the stored script executes in their browser session.
Exploitation requires user interaction and low-privilege authentication. Successful exploitation results in limited but meaningful impact to confidentiality, integrity, and availability across a changed security scope, meaning the injected script can reach contexts outside the plugin itself.
Root Cause
The root cause is missing or insufficient output encoding when the plugin renders stored user input into HTML. Input fields exposed through the Uncanny Toolkit for LearnDash accept content that is not stripped of active HTML or JavaScript. WordPress functions such as esc_html(), esc_attr(), or wp_kses() are either absent or misapplied on the affected rendering paths.
Attack Vector
The attack vector is network-based. An authenticated attacker submits a payload through a plugin-controlled input field. The payload is stored in the WordPress database and later served to any user who accesses the affected view. Typical payloads target session cookies, WordPress nonces, or the administrator dashboard to escalate privileges or perform unauthorized actions on behalf of the victim.
No verified proof-of-concept code is publicly available. See the Patchstack advisory for further technical context.
Detection Methods for CVE-2025-48080
Indicators of Compromise
- Unexpected <script>, onerror, or onload attributes stored in WordPress post metadata, options, or plugin-specific tables tied to uncanny-learndash-toolkit.
- Outbound browser requests from authenticated admin sessions to unknown domains shortly after loading LearnDash-related pages.
- New or modified WordPress administrator accounts created outside change-management windows.
Detection Strategies
- Query the WordPress database for plugin-managed fields containing HTML tags, javascript: URIs, or event handler attributes.
- Review web server access logs for POST requests to Uncanny Toolkit endpoints with payloads containing encoded script tags.
- Correlate WordPress audit logs of low-privilege user submissions with subsequent administrator-side rendering events.
Monitoring Recommendations
- Enable a WordPress activity logging plugin to track content edits by contributor and author roles.
- Deploy a Content Security Policy (CSP) with script-src restrictions to block inline execution and surface violations.
- Monitor endpoint telemetry from administrator workstations for anomalous browser child processes or credential access following LearnDash portal visits.
How to Mitigate CVE-2025-48080
Immediate Actions Required
- Update the Uncanny Toolkit for LearnDash plugin to a version later than 3.7.0.2 as soon as the vendor releases a fixed release.
- Audit contributor, author, and instructor accounts and revoke access for users who do not require elevated permissions.
- Review all plugin-managed content for stored payloads and purge any suspicious HTML or script fragments.
Patch Information
At the time of publication, the advisory lists versions through 3.7.0.2 as affected with no fixed version explicitly identified in the NVD record. Administrators should consult the Patchstack advisory and the plugin vendor's changelog for the corrected release.
Workarounds
- Deactivate the Uncanny Toolkit for LearnDash plugin until a patched version is available if the affected features are not business-critical.
- Restrict plugin-exposed input surfaces to trusted administrator roles using role-management controls.
- Enforce a strict Content Security Policy that disallows inline scripts and untrusted external script sources on WordPress front-end and admin pages.
- Place the WordPress site behind a Web Application Firewall (WAF) with rules that block common stored XSS payload patterns.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
