SSRF in Greenshift

CVE-2026-83543

The Greenshift WordPress plugin before 13.2.0 does not validate a user-supplied URL before fetching it server-side, allowing users with contributor-level access and above to make the server issue requests to arbitrary hosts and read the response.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (21.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-83543: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

  • Greenshift

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-83543?
CVE-2026-83543 is a medium-severity vulnerability in Greenshift, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.1/10. Published 2026-09-05.
How severe is CVE-2026-83543?
Medium severity. CVSS v3 base score is 4.1 out of 10.