Vulnerabilities / Uncanny Toolkit for LearnDash / WPSEC-2026-2151
Uncanny Toolkit for LearnDash <= 3.8.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via uo_login Shortcode Label Attributes
Medium 6.4
CWE-79Fixed in 3.8.3
- ID
- WPSEC-2026-2151
- Plugin
- Uncanny Toolkit for LearnDash (uncanny-learndash-toolkit)
- Affected
- all versions before 3.8.3
- Remediation
- Update to 3.8.3 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-10-30
- Attack surface
- Uncanny Toolkit for LearnDash on WPSec AttackSurface
- Fix released
- Published
Description
The Uncanny Toolkit for LearnDash plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'username-label' and 'password-label' attributes of the [uo_login] shortcode in all versions up to, and including, 3.8.2. This is due to the plugin echoing these values without escaping inside a single-quoted JavaScript string in an inline script. This makes it possible for authenticated attackers with contributor-level access and above to inject arbitrary web scripts in pages. The scripts run whenever a logged-out visitor opens an injected page.
References
- https://wpsec.com/vuln/WPSEC-2026-2151/
- https://plugins.svn.wordpress.org/uncanny-learndash-toolkit/tags/3.8.3/
- https://wordpress.org/plugins/uncanny-learndash-toolkit/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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