What’s Vulnerable › Vulnerabilities
CVE-2026-12114: Team Members <= 8.7 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'custom_css' Parameter
- Severity: medium (CVSS 4.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-30 · updated 2026-06-30
- Weakness: CWE-79
Description
The Team Members – Multi Language Supported Team Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 8.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Affected products
References
- https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.6/settings/helper/slider_form_save.php#L529
- https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.6/settings/helper/slider_form_save.php#L531
- https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.6/shortcode.php#L200
- https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.7/settings/helper/slider_form_save.php#L529
- https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.7/settings/helper/slider_form_save.php#L531
- https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.7/shortcode.php#L200
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3580341%40team-showcase-supreme&new=3580341%40team-showcase-supreme&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ccf00ec5-b91a-47db-81e6-68f984b8f06b?source=cve
Get alerted when CVE-2026-12114 or the next vulnerability affects your stack