CVE-2025-1304 is a vulnerability classified under CWE-862 (Missing Authorization) found in the NewsBlogger WordPress theme developed by spicethemes. The vulnerability exists because the function newsblogger_install_and_activate_plugin() lacks proper capability checks to verify if the user has sufficient privileges before allowing plugin installation and activation. This flaw is present in all versions up to and including 0.2.5.1. As a result, any authenticated user with subscriber-level access or higher can upload arbitrary files to the web server hosting the WordPress site. Since WordPress subscriber roles are typically assigned to low-privilege users, this significantly lowers the barrier for exploitation. The arbitrary file upload can be leveraged to place malicious scripts or web shells on the server, potentially leading to remote code execution (RCE). The vulnerability has a CVSS v3.1 base score of 8.8, reflecting its high impact on confidentiality, integrity, and availability, as well as its low attack complexity and no requirement for user interaction. Although no public exploits have been reported yet, the vulnerability is critical due to the widespread use of WordPress and the common practice of using third-party themes. The lack of a patch at the time of publication means that affected sites remain vulnerable until mitigations or updates are applied.

The impact of CVE-2025-1304 is significant for organizations running WordPress sites with the NewsBlogger theme. Successful exploitation allows attackers with minimal privileges to upload arbitrary files, which can lead to remote code execution. This compromises the confidentiality of sensitive data stored or processed by the website, the integrity of the website content and backend systems, and the availability of the service if attackers deploy destructive payloads or disrupt operations. Attackers could use this access to pivot within the network, deploy ransomware, or conduct data exfiltration. Small and medium enterprises, bloggers, and organizations relying on WordPress for their web presence are particularly at risk, as they may lack robust security controls or monitoring. The vulnerability also poses reputational risks and potential regulatory compliance issues if exploited. Given WordPress’s global popularity, the threat surface is extensive, affecting a wide range of sectors including e-commerce, media, education, and government websites.

To mitigate CVE-2025-1304, organizations should immediately audit their WordPress installations for the presence of the NewsBlogger theme, especially versions up to 0.2.5.1. Since no official patch is currently available, administrators should consider the following specific actions: 1) Temporarily disable or remove the NewsBlogger theme until a secure update is released. 2) Restrict user roles and permissions to the minimum necessary, ensuring that subscriber-level accounts are closely monitored and that untrusted users do not have elevated privileges. 3) Implement web application firewalls (WAFs) with rules to detect and block arbitrary file upload attempts targeting the vulnerable function. 4) Monitor server logs for unusual file uploads or execution of unexpected scripts. 5) Harden the server by disabling execution permissions in upload directories where possible. 6) Employ intrusion detection systems (IDS) to alert on suspicious activity related to file uploads. 7) Once a patch is released by spicethemes, apply it promptly and verify the fix. 8) Educate site administrators about the risks of installing untrusted plugins or themes and the importance of regular updates.