CVE-2025-49277 is a high-severity vulnerability classified under CWE-98, which involves improper control of filenames used in include or require statements within PHP programs. Specifically, this vulnerability affects the Unfoldwp Blogprise product, versions up to and including 1.0.9. The flaw allows an attacker to perform a PHP Local File Inclusion (LFI) attack by manipulating the filename parameter used in include or require statements. This can lead to the inclusion and execution of arbitrary files on the server, potentially resulting in full compromise of the affected system. The vulnerability is remotely exploitable over the network without requiring authentication or user interaction, but it has a high attack complexity, indicating some conditions must be met for exploitation. The CVSS v3.1 base score is 8.1, reflecting high impact on confidentiality, integrity, and availability. Successful exploitation can lead to disclosure of sensitive information, code execution, and denial of service. No known public exploits have been reported yet, and no patches or fixes have been linked at the time of publication. The vulnerability was reserved and published in early June 2025, indicating it is a recent discovery. Given the nature of PHP Remote File Inclusion and Local File Inclusion vulnerabilities, attackers may leverage this flaw to escalate privileges, move laterally within networks, or deploy malware payloads.

For European organizations using the Unfoldwp Blogprise blogging platform, this vulnerability poses a significant risk. Exploitation could lead to unauthorized access to sensitive corporate or personal data, defacement of websites, or complete server takeover. This is particularly critical for organizations relying on Blogprise for public-facing websites, content management, or internal communications. The confidentiality breach could expose personal data protected under GDPR, leading to regulatory penalties and reputational damage. Integrity and availability impacts could disrupt business operations, causing downtime and loss of customer trust. Since the vulnerability can be exploited remotely without authentication, attackers can target vulnerable systems en masse, increasing the risk of widespread compromise. The lack of available patches means organizations must rely on immediate mitigation strategies to reduce exposure. Additionally, the high attack complexity may limit exploitation to skilled attackers, but motivated threat actors, including cybercriminals and state-sponsored groups, could still leverage this vulnerability to target European entities.

Given the absence of official patches, European organizations should implement the following specific mitigations: 1) Immediately audit all Blogprise installations to identify affected versions (up to 1.0.9) and isolate vulnerable instances. 2) Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious include/require parameter manipulations indicative of LFI attempts. 3) Restrict PHP include paths using open_basedir directives to limit file inclusion to trusted directories only. 4) Disable remote file inclusion functionality in PHP configurations (e.g., setting allow_url_include=Off) to prevent remote file inclusion attacks. 5) Conduct thorough input validation and sanitization on all user-supplied parameters that influence file inclusion logic. 6) Monitor logs for unusual file access patterns or error messages related to include/require statements. 7) Consider temporary removal or replacement of Blogprise with alternative platforms until a vendor patch is released. 8) Engage with Unfoldwp for timely updates and patches, and subscribe to vulnerability advisories. 9) Implement network segmentation to limit access to vulnerable web servers. These targeted actions go beyond generic advice and focus on immediate risk reduction tailored to the nature of this vulnerability.