CVE-2026-27335 is a Local File Inclusion (LFI) vulnerability found in the AncoraThemes Ekoterra WordPress theme, which is designed for nonprofit, green energy, and ecology websites. The vulnerability arises from improper control and validation of filenames passed to PHP include or require statements. This flaw allows an attacker to manipulate the filename parameter to include arbitrary local files on the web server. By exploiting this, attackers can read sensitive files such as configuration files, password files, or even execute malicious PHP code if they can upload files to the server. The vulnerability affects all versions of the Ekoterra theme up to and including version 1.0.0. No CVSS score has been assigned yet, and no public exploits have been reported. The issue was reserved in February 2026 and published in March 2026. The lack of patch links suggests that a fix may not yet be publicly available. The vulnerability does not require authentication, increasing its risk profile. The theme's user base, primarily nonprofits and ecological organizations, may have limited resources to respond quickly, increasing exposure. Attackers can exploit this vulnerability remotely by sending crafted HTTP requests that manipulate the include path, potentially leading to information disclosure, code execution, or full server compromise depending on server configuration and other factors.

The impact of CVE-2026-27335 can be significant for organizations using the vulnerable Ekoterra theme. Successful exploitation can lead to disclosure of sensitive information such as database credentials, configuration files, and other critical data stored on the server. In some cases, attackers might execute arbitrary code, leading to full server compromise, data theft, defacement, or use of the server as a pivot point for further attacks. Nonprofit and ecological organizations, which may rely heavily on their websites for fundraising and communication, could suffer reputational damage and operational disruption. The vulnerability's ease of exploitation without authentication increases the risk of automated attacks and widespread scanning. Additionally, since WordPress themes are often widely deployed, the scope of affected systems could be substantial, especially if the theme is popular in certain regions or sectors. The lack of a patch at the time of disclosure further elevates the risk until mitigations are applied.

To mitigate CVE-2026-27335, organizations should first check for and apply any official patches or updates released by AncoraThemes for the Ekoterra theme. If no patch is available, manual mitigation involves reviewing and modifying the theme's PHP code to ensure that any filename parameters used in include or require statements are strictly validated and sanitized. Implement allowlists for acceptable file paths and names to prevent arbitrary file inclusion. Disable remote file inclusion in PHP configuration (allow_url_include=Off) if not already set. Employ Web Application Firewalls (WAFs) to detect and block suspicious requests targeting file inclusion parameters. Regularly audit and monitor web server logs for unusual access patterns or attempts to exploit file inclusion vulnerabilities. Consider temporarily disabling or replacing the vulnerable theme with a secure alternative until a patch is available. Educate site administrators about the risks and encourage timely updates of all WordPress components. Finally, ensure backups are current to enable rapid recovery if compromise occurs.