CVE-2026-4361: Elegant Themes Divi server-side request forgery in video thumbnail function

CVE-2026-4361 · Severity: medium · CVSS 5 · Published 2026-09-05

The Divi WordPress theme is used by hundreds of thousands of web designers to build and manage websites through a visual interface. A vulnerability in the video thumbnail processing function allows authenticated users with Contributor-level access to make web requests from the server to internal or external systems without proper validation. While attackers cannot see direct response data, they can infer results through response timing and HTTP status codes, potentially discovering internal infrastructure or testing connectivity to restricted systems.

Technologies: Elegant Themes Divi. Vendors: Elegant Themes.

Quick answers

Is CVE-2026-4361 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-4361 being exploited in the wild.
How severe is CVE-2026-4361?
Medium severity, with a CVSS score of 5, published 5 September 2026.
Which products and versions are affected?
Elegant Themes Divi up to 4.27.6.
Is there a fix for CVE-2026-4361?
A patch was published on 2026: Fixed in version 4.27.7 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-4361 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-4361?
Check whether you run Elegant Themes Divi at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a Server-Side Request Forgery (SSRF) in the `et_pb_set_video_oembed_thumbnail_resolution()` function due to unsafe use of `wp_remote_get()` instead of `wp_safe_remote_get()` when fetching remote image URLs. The function does not restrict requests to private or reserved IP ranges, allowing authenticated attackers (Contributor level and above) to probe arbitrary network endpoints. This is a blind SSRF: the response body is not returned to the attacker, but two information leakage vectors exist—a status oracle (HTTP 200 responses produce different URL strings) and a timing oracle (response latency varies by target reachability). The vulnerability affects all versions up to 4.27.6; a patch is available in version 4.27.7 and later.

Affected products

  • Elegant Themes Divi up to 4.27.6

Timeline

  • 2026-09-05: disclosed
  • 2026: patched: Fixed in version 4.27.7

References

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