XSS in Dartiss Code Embed
CVE-2026-2512
The Code Embed plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom field meta values in all versions up to, and including, 2.5.1. This is due to the plugin's sanitization function `sec_check_post_fields()` only running on the `save_post` hook, while WordPress allows custom fields to be added via the `wp_ajax_add_meta` AJAX endpoint without triggering `save_post`. The `ce_filter()` function then outputs these unsanitized meta values directly into page content without escaping. 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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (9.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Dartiss Code Embed — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-2512?
- CVE-2026-2512 is a medium-severity vulnerability in Dartiss Code Embed, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-03-18.
- How severe is CVE-2026-2512?
- Medium severity. CVSS v3 base score is 6.4 out of 10.