Divi permits Contributor-level blind SSRF
Divi through 4.27.6 uses wp_remote_get() in et_pb_set_video_oembed_thumbnail_resolution() to fetch a Contributor-controlled image URL without blocking private or reserved destinations. The response body is not returned, but differences in the returned URL and request timing provide status and reachability oracles for internal targets.
- Component
- Divi
- Plugin slug
divi- Affected
- <= 4.27.6
- Safe version
- See mitigation notes
- Published
- Sep 05, 2026
This CVE was published Sep 05, 2026 and is one of 11 known issues for this theme.
Update, patch or deactivate.
No confirmed fixed release is identified. Obtain a vendor-confirmed update or restrict Contributor access to the affected video thumbnail flow, and review outbound requests for internal or metadata-service destinations.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Divi theme for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 4.27.6. This is due to the `et_pb_set_video_oembed_thumbnail_resolution()` function using `wp_remote_get()` instead of `wp_safe_remote_get()` to fetch a remote image URL, which does not restrict requests to private or reserved IP ranges. This makes it possible for authenticated attackers, with Contributor-level access and above, to make web requests to arbitrary locations originating from the web application server. The response body is not returned to the attacker (blind SSRF), but two oracles exist: a status oracle (the returned URL string differs depending on whether the target responded with HTTP 200) and a timing oracle (response time varies by target reachability).
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N