Description

CVE-2024-12121 affects the Broken Link Checker | Finder plugin for WordPress, impacting all versions up to and including 2.5.0. This vulnerability is classified as a Blind Server-Side Request Forgery (SSRF) within the moblc_check_link function. Exploiting this flaw allows authenticated attackers with Author-level access or higher to send web requests to arbitrary locations originating from the WordPress application. Consequently, attackers could potentially query and manipulate data from internal services, posing a significant risk to data confidentiality and integrity.

SVRS Score: 46. While the CVSS score is moderate (5.4), the SVRS score of 46 indicates a less critical vulnerability than one scoring above 80. This highlights that although the vulnerability should be addressed, it might not require immediate action compared to higher-risk vulnerabilities.

Key Insights

1. Attacker Privilege: Exploiting CVE-2024-12121 requires attackers to be authenticated with at least Author-level access. This means attackers must already have a degree of access to the WordPress site.
2. Blind SSRF: The vulnerability is classified as a Blind SSRF. This implies that attackers cannot directly observe the responses from their malicious requests. Instead, they must infer the success or failure of their actions based on indirect indicators, such as changes in the target system's behavior.
3. Internal Service Exploitation: Attackers can use this vulnerability to target internal services and potentially gain access to sensitive information or manipulate their functionality. This could lead to data breaches, denial of service attacks, or unauthorized access to internal resources.

Mitigation Strategies

1. Update the Plugin: The first and most effective mitigation strategy is to update the Broken Link Checker | Finder plugin to version 2.5.1 or later. This version addresses the vulnerability and eliminates the risk of exploitation.
2. Restrict Access: Implement stricter access control measures to minimize the number of users with Author-level or higher permissions. This can limit the potential impact of the vulnerability by restricting the attacker's ability to send malicious requests.
3. Network Segmentation: Implement network segmentation to isolate the WordPress application and its underlying infrastructure from internal services. This helps prevent attackers from leveraging the vulnerability to access sensitive data or functionality within the internal network.
4. Monitoring: Implement intrusion detection and prevention systems (IDS/IPS) to detect and block malicious requests originating from the WordPress application. This can help mitigate the risk of exploitation, even if the vulnerability isn't patched immediately.

Additional Information: If users have additional queries regarding this incident, they can use the 'Ask to Analyst' feature, contact SOCRadar directly, or open a support ticket for more information if necessary.