CVE-2026-83543

N/A PoC AVAILABLE

Published 2026-09-05 · Last modified 2026-09-05

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.

EXPLOIT AVAILABLE

Public exploit or PoC code exists. Modeled probability is still low, but the barrier to attack is reduced — watch closely.

Exploitation likelihood

—EPSS not yet scored

○ In CISA KEV ● Public exploit / PoC

Impact if exploited

—CVSS · not scored

No impact metrics

Proof of concept & exploit code

reference https://wpscan.com/vulnerability/902e46ad-e577-4a3e-be19-a3bcc75ece77/
github-search Search GitHub for public PoC repos

Test against your own equipment

curl -s https://vulnpedia.com/cve/CVE-2026-83543/poc.jsonMachine-readable PoC index for this CVE (for automation).

Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-83543/poc.json

Affected

Vendors Unknown

Products Greenshift

Weakness (CWE)

Not classified.

CVSS vector

Not yet scored.

References

Exploits & PoC

https://wpscan.com/vulnerability/902e46ad-e577-4a3e-be19-a3bcc75ece77/ exploitvdb-entrytechnical-description

Sources: NVD · CVE.org · EPSS