CVE-2026-97336
HighCVSS 7.2Summary
The CMB2 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'file_list' Field Type in all versions up to and including 2.13.0 due to insufficient input sanitization and output escaping. This is only exploitable when an integrating plugin or theme registers a file_list field on a publicly accessible front-end form or user meta box.
Risk Assessment
An unauthenticated attacker can inject malicious scripts that execute in the browser of users visiting affected pages, potentially leading to data theft or session hijacking.
Recommendation
Update the CMB2 plugin to the latest patched version and review integrating plugins/themes for usage of file_list fields in public forms.
Other vulnerabilities in CMB2
See all- CVE-2026-102772High
The CMB2 plugin for WordPress in versions up to and including 2.13.1 is vulnerable to stored cross-site scripting (XSS) via the '<textarea_code field id>' parameter (e.g., kl_code, kl_post_code) due to insufficient input sanitization and output escaping. An unauthenticated attacker can inject arbitrary scripts into pages that execute when a user visits the injected page. The front-end save path requires only a CMB2 box nonce, which is emitted to all visitors including unauthenticated guests via a simple GET request, making the attack trivially reachable without credentials on sites exposing a public CMB2 form writing a textarea_code field.
- CVE-2026-97270Medium
Cross Site Scripting (XSS) vulnerability in CMB2 versions up to 2.13.0, exploitable by a subscriber.
Original NVD description (English source)
The CMB2 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'file_list' Field Type in all versions up to, and including, 2.13.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is only exploitable when an integrating plugin or theme registers a file_list field on a publicly accessible front-end form or a user meta box, as CMB2 is a developer library and does not expose these fields by default.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS