External risk intelligence
Joomla could allow external attackers to expose sensitive system data.
Joomla! could allow external attackers to extract data from web services, potentially exposing sensitive system configurations or customer information. This vulnerability is confirmed to be under active exploitation.
CVE-2023-23752
Exposure facts
H – Horizon Alert
A security vulnerability has been identified in Joomla! related to an improper access check within the platform’s webservice endpoints. This flaw potentially allows unauthorized individuals to interact with internal service functions that should be restricted. Addressing this issue is important to ensure that the platform maintains proper control over who can access its services and underlying data.
A – Asset Exposure
This issue affects websites and applications built on the Joomla! platform. As these systems are commonly hosted on the public internet, this vulnerability could allow external attackers to bypass security protections and reach webservice endpoints without proper authorization. This may ultimately result in unauthorized access to administrative functions or the exposure of sensitive data managed by the website.
L – Live Threat
This vulnerability is actively exploited in the wild and is officially documented in the CISA Known Exploited Vulnerabilities catalog. Due to its inclusion in this registry and a high probability of exploitability, there is a clear risk of targeting for systems with reachable webservice endpoints. We are highlighting this status because it represents an established vector for unauthorized access.
O – Operational Fix
To ensure the continued security of your environment, please prioritize reviewing the official Joomla! security updates. We recommend strictly following the vendor’s provided guidance to apply the necessary mitigations to all active instances. If you are unable to implement these updates immediately, please consult the developer's security center for alternative configurations to help protect your systems.
References
- https://developer.joomla.org/security-centre/894-20230201-core-improper-access-check-in-webservice-endpoints.html
- https://developer.joomla.org/security-centre/894-20230201-core-improper-access-check-in-webservice-endpoints.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23752