Executive brief
The Greenshift plugin, used to add animations and page builder blocks to WordPress sites, contains a server-side request forgery (SSRF) vulnerability in its REST API endpoint. An attacker with contributor-level access can manipulate a URL parameter to force the server to fetch arbitrary external content and return the results, potentially exposing data from internal or external services reachable from the server.
Technical details
The vulnerability is a server-side request forgery (SSRF) in the get-csv-to-json REST endpoint that fails to validate user-supplied URLs before fetching them server-side. An authenticated user with contributor-level access or higher can call the endpoint with an arbitrary URL parameter and retrieve the server's response, allowing attacks against external hosts or services accessible from the server's network position. WordPress core's request wrapper does prevent access to loopback and private IP ranges, limiting the scope to public hosts. The vulnerability was fixed in version 13.2.0; affected versions are prior to 13.2.0.
Affected products
- Greenshift Greenshift before 13.2.0
Timeline
- 2026-09-03: disclosed
- 2026-09-05: patched: Fixed in version 13.2.0