SQL Injection in Zcontent Zap Calendar Lite
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.
Vulnerability class: SQL Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Zcontent Zap Calendar Lite — versions 4.3.4
- Zcontent Zap Calendar Lite — versions 4.3.4
Weakness classification (CWE)
References
- extensions.joomla.org/extensions/extension/calendars-a-events/events/zap-calend… (Product, product)
- www.exploit-db.com/exploits/42500 (Exploit, VDB Entry, exploit)
- www.vulncheck.com/advisories/joomla-component-zap-calendar-lite-sql-injection (Third Party Advisory, third-party-advisory)
- zcontent.net/ (Product, product)
Frequently asked questions
- What is CVE-2017-20268?
- CVE-2017-20268 is a high-severity vulnerability in Zcontent Zap Calendar Lite, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-06-19.
- How severe is CVE-2017-20268?
- High severity. CVSS v3 base score is 8.2 out of 10.