CVE-2017-20268: Zcontent Zap Calendar Lite

High severity, CVSS 8.2. EPSS: 0.5% chance of exploitation in the next 30 days.

Joomla! Component Zap Calendar Lite 4.3.4 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the 'eid' parameter. Attackers can send GET requests to the RSVP plugin endpoint with crafted SQL payloads to extract sensitive database information including database names and table structures.

Affected products

• Zcontent Zap Calendar Lite: version 4.3.4 only

Published 2026-06-19. Last modified 2026-08-21.