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CVE-2026-3851 (GCVE-0-2026-3851)

Vulnerability from cvelistv5 – Published: 2026-09-02 03:38 – Updated: 2026-09-03 18:19
VLAI
Title
Divi <= 4.27.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Dynamic Content (Legacy JSON Format) Shortcode
Summary
The Divi theme for WordPress is vulnerable to Stored Cross-Site Scripting via the Dynamic Content feature's legacy JSON format in all versions up to, and including, 4.27.6. This is due to two compounding flaws: (1) the save-time sanitization filter `et_builder_sanitize_dynamic_content_fields()` only searches for dynamic content markers in the `@ET-DC@...@` format, but the rendering engine also supports a legacy JSON format that is silently converted at render time, completely bypassing the save-time filter, and (2) the `post_meta_key` resolver in `et_builder_filter_resolve_default_dynamic_content()` does not apply `wp_kses_post()` to the resolved meta value when `enable_html` is set to `on`, passing raw `get_post_meta()` output directly to the page. 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.
Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 18:18 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version CPE status
Elegant Themes Divi Affected: 0 , ≤ 4.27.6 (semver)
guessed Create a notification for this product.
Credits
Osvaldo Noe Gonzalez Del Rio (Os)
Show details on NVD website
To clipboard 

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