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CVE-2017-20273

Joomalshowroom Event Registration Pro Calendar SQL injection

8.2 HIGHPublic exploitEPSS 0.43%
  1. Published19 Jun 2026

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Affected products

Joomalshowroom Event Registration Pro Calendar4.1.3

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2017-20273 being actively exploited?

CVE-2017-20273 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.43%.

How severe is CVE-2017-20273?

CVE-2017-20273 has a CVSS 3.1 base score of 8.2, rated high. EPSS estimates a 0.43% probability of exploitation.

Which products are affected by CVE-2017-20273?

Affected products include Joomalshowroom Event Registration Pro Calendar.

How do I fix CVE-2017-20273?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2017-20273 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.