What’s Vulnerable › Vulnerabilities

CVE-2017-20268: Joomla! Component Zap Calendar Lite 4.3.4 SQL Injection

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-06-19 · updated 2026-08-21
• Weakness: CWE-89

Description

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: 4.3.4

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/

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