CVE-2018-15833: Vanillaforums Vanilla Forums

Medium severity, CVSS 4.3. EPSS: 0.9% chance of exploitation in the next 30 days.

In Vanilla before 2.6.1, the polling functionality allows Insecure Direct Object Reference (IDOR) via the Poll ID, leading to the ability of a single user to select multiple Poll Options (e.g., vote for multiple items).

Affected products

• Vanillaforums Vanilla Forums: before 2.6.1 (fixed in 2.6.1)

Published 2018-08-26. Last modified 2026-06-17.