What is CVE-2026-107447?

CVE-2026-107447 is a medium-severity vulnerability in Contest Gallery, classified under Authentication Bypass by Spoofing. CVSS score: 5.3/10. Published 2026-10-21.

How severe is CVE-2026-107447?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Contest Gallery

CVE-2026-107447

The Contest Gallery WordPress plugin before 34.0.1 does not reliably validate the visitor identity used to enforce its one-vote-per-entry restriction, trusting a client-supplied request header and an unbound client-generated token, which allows unauthenticated users to bypass the restriction and cast multiple votes for the same contest entry, inflating its vote total.

Published 2026-10-21 · last modified 2026-10-21.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Contest Gallery

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

wpscan.com/vulnerability/9b848bb1-8be6-4ba6-9fd0-c45997502bce/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-107447?: CVE-2026-107447 is a medium-severity vulnerability in Contest Gallery, classified under Authentication Bypass by Spoofing. CVSS score: 5.3/10. Published 2026-10-21.
How severe is CVE-2026-107447?: Medium severity. CVSS v3 base score is 5.3 out of 10.