# CVE-2026-83543: Greenshift WordPress plugin SSRF in REST endpoint

Source: https://junglewise.ai/threats/cve-2026-83543-greenshift-wordpress-plugin-ssrf-in-rest-endpoint  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-05. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-83543 · Severity: medium · CVSS 4.1 · Published 2026-09-05

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.

Vendors: [Greenshift](https://junglewise.ai/threats/vendors/greenshift).

## Quick answers

**Is CVE-2026-83543 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83543 being exploited in the wild.

**How severe is CVE-2026-83543?** Medium severity, with a CVSS score of 4.1, published 5 September 2026.

**Which products and versions are affected?** Greenshift before 13.2.0.

**Is there a fix for CVE-2026-83543?** A patch was published on 2026-09-05: Fixed in version 13.2.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-83543 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-83543?** Check whether you run Greenshift 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 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

## References

- [https://wpscan.com/vulnerability/902e46ad-e577-4a3e-be19-a3bcc75ece77/](https://wpscan.com/vulnerability/902e46ad-e577-4a3e-be19-a3bcc75ece77/)

## Related threats

- [Greenshift WordPress plugin stored XSS in block animation](https://junglewise.ai/threats/cve-2026-83544-greenshift-wordpress-plugin-stored-xss-in-block-animation)