Joomlashowroom Event Registration Pro Calendar 4.1.3 index.php ID sql injection
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.4 | $0-$5k | 1.33 |
Summary
A vulnerability classified as critical has been found in Joomlashowroom Event Registration Pro Calendar 4.1.3. Affected by this vulnerability is an unknown functionality of the file index.php of the component Registration Handler. This manipulation of the argument ID causes sql injection. This vulnerability is tracked as CVE-2017-20273. The attack is possible to be carried out remotely. Moreover, an exploit is present.
Details
A vulnerability was found in Joomlashowroom Event Registration Pro Calendar 4.1.3. It has been declared as critical. Affected by this vulnerability is some unknown processing of the file index.php of the component Registration Handler. The manipulation of the argument id with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
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.
The weakness was disclosed by Ihsan Sencan as 42416. It is possible to read the advisory at exploit-db.com. This vulnerability is known as CVE-2017-20273 since 06/19/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.
It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:index.php it is possible to find vulnerable targets with Google Hacking.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at Exploit-DB (42416). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Type
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 7.7VulDB Meta Temp Score: 7.4
VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 8.2
CNA Vector (VulnCheck): 🔒
CVSSv2
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Sql injectionCWE: CWE-89 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Exploit-DB: 🔒
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
06/19/2026 Advisory disclosed06/19/2026 CVE reserved
06/19/2026 VulDB entry created
06/19/2026 VulDB entry last update
Sources
Advisory: 42416Researcher: Ihsan Sencan
Status: Not defined
CVE: CVE-2017-20273 (🔒)
GCVE (CVE): GCVE-0-2017-20273
GCVE (VulDB): GCVE-100-372427
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 06/19/2026 23:33Changes: 06/19/2026 23:33 (83)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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