How severe is CVE-2026-16586?

Medium severity. CVSS v3 base score is 6.5 out of 10.

SQL Injection in Contest-Gallery Contest Gallery – Upload & Vote Photos, Media, Sell With Paypal Stripe

CVE-2026-16586

The Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & Stripe plugin for WordPress is vulnerable to Second-Order SQL Injection via MultipleFiles Second-Order Payload via 'cg_multiple_files_for_post' -> 'cgRealId' in all versions up to, and including, 30.0.7 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with author-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Vulnerability class: SQL Injection

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Contest-gallery Contest Gallery – Upload & Vote Photos, Media, Sell With Paypal Stripe — versions 0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

Frequently asked questions

What is CVE-2026-16586?: CVE-2026-16586 is a medium-severity vulnerability in Contest-Gallery Contest Gallery – Upload & Vote Photos, Media, Sell With Paypal Stripe, classified under SQL Injection. CVSS score: 6.5/10. Published 2026-08-15.
How severe is CVE-2026-16586?: Medium severity. CVSS v3 base score is 6.5 out of 10.