Improper Access Check in Joomla's Webservice Endpoints
CVE-2026-23899

8.6HIGH

Key Information:

Vendor

Joomla
Status
Joomla! Cms
Vendor
CVE Published:
1 April 2026

What is CVE-2026-23899?

An improper access check in Joomla's webservice endpoints can lead to unauthorized access, allowing attackers to exploit these vulnerabilities. This flaw may compromise sensitive data, making it crucial for users to update their installations and adhere to security best practices to mitigate potential threats.

Affected Version(s)

Joomla! CMS 4.0.0-5.4.3

Joomla! CMS 6.0.0-6.0.3

References

https://developer.joomla.org/security-centre/1032-2026030...
vendor-advisory

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

ThĂ nh Nguyá»…n
.