CVE-2017-20273

8.8 highEPSS 0.4%

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.

Severity

CVSS 4.0

8.8 high

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

8.2 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-31)
CWE: CWE-89
Published: 2026-06-19
Modified: 2026-08-21
Record from: the NVD, synced 2026-10-19

Affected

joomalshowroom:event_registration_pro_calendar

References

https://www.exploit-db.com/exploits/42416
https://www.vulncheck.com/advisories/joomla-event-registration-pro-calendar-sql-injection

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