CVE-2017-20268

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.

Score

CVSS 4.0 8.8 High

Status

Analyzed - disclosure@vulncheck.com

Published

2026-06-19

Last modified

2026-07-15

Weaknesses

CWE-89

Affected products

• Bw-calendar-engine (Apereo)
• Zap Calendar Lite (Zcontent)

References

• https://extensions.joomla.org/extensions/extension/calendars-a-events/events/zap-calendar-lite/
• https://www.exploit-db.com/exploits/42500
• https://www.vulncheck.com/advisories/joomla-component-zap-calendar-lite-sql-injection
• https://zcontent.net/