SQL Injection in Joomalshowroom Event Registration Pro Calendar
CVE-2017-20273
Joomla Event Registration Pro Calendar 4.1.3 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the id parameter. Attackers can send GET requests to index.php with option=com_registrationpro&view=category&id parameter containing SQL injection payloads to extract sensitive database information.
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: 0.004 (35.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.1% 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: 0.004 · change: +0.001
Affected products
- Joomalshowroom Event Registration Pro Calendar — versions 4.1.3
- Joomlashowroom Event Registration Pro Calendar — versions 4.1.3
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/42416 (Exploit, VDB Entry, exploit)
- www.vulncheck.com/advisories/joomla-event-registration-pro-calendar-sql-injecti… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2017-20273?
- CVE-2017-20273 is a high-severity vulnerability in Joomalshowroom Event Registration Pro Calendar, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-06-19.
- How severe is CVE-2017-20273?
- High severity. CVSS v3 base score is 8.2 out of 10.