What is CVE-2017-20273?

CVE-2017-20273 is a high-severity vulnerability in Joomlashowroom 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.

SQL Injection in Joomlashowroom 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 reques…

Vulnerability class: SQL Injection

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.

Affected products

Joomlashowroom Event Registration Pro Calendar — versions 4.1.3

Weakness classification (CWE)

CWE-89 — SQL Injection

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2017-20273?: CVE-2017-20273 is a high-severity vulnerability in Joomlashowroom 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.