Description
The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'um_loggedin' shortcode in all versions up to, and including, 2.8.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ultimatemember | Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin | ≤ 2.8.6 | — |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9e394bb2-d505-4bf1-b672-fea3504bf936?source=cve
- https://github.com/ultimatemember/ultimatemember/blob/7b8a7a7c039bde4539c07e049b19036192f1c133/includes/core/class-shortcodes.php#L433
- https://wordpress.org/plugins/ultimate-member/
- https://github.com/ultimatemember/ultimatemember/pull/1545
- https://plugins.trac.wordpress.org/changeset/3160947/ultimate-member/tags/2.8.7/includes/core/class-shortcodes.php