SQL Injection Vulnerability in Joomla! Component Calendar Planner by Joomla!
CVE-2017-20267

8.8HIGH

Key Information:

Vendor

Joomlathat

Status
Calendar Planner
Vendor
CVE Published:
19 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2017-20267?

The Joomla! Component Calendar Planner version 1.0.1 is susceptible to an SQL injection vulnerability that enables unauthenticated attackers to execute arbitrary SQL queries via the category_id parameter. By manipulating this parameter in GET requests to the events view, attackers can potentially extract sensitive information from the database, posing a significant security threat to the integrity of the application.

Affected Version(s)

Calendar Planner 1.0.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2017-20267 - Proof of Concept

References

https://www.exploit-db.com/exploits/42501
exploit
http://joomlathat.com/
product
https://extensions.joomla.org/extensions/extension/calend...
product

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ihsan Sencan
.