CVE-2025-15158 eastsidecode CVE debrief

Who should care

WordPress site administrators and security teams should assess exposure and prioritize remediation due to the potential for remote code execution. This vulnerability affects WordPress site administrators, security teams, and operators who are responsible for maintaining the security and integrity of their sites. They should review and update the WP Enable WebP plugin, restrict file uploads, and monitor for suspicious activity to prevent exploitation.

Why it matters

The WP Enable WebP plugin vulnerability allows authenticated attackers to upload arbitrary files, potentially leading to remote code execution. WordPress site administrators and security teams should assess exposure and prioritize remediation.

• Potential for remote code execution on affected sites
• Increased risk of site compromise and data breaches
• Need for immediate remediation to prevent exploitation

Technical summary

The WP Enable WebP plugin for WordPress is vulnerable to arbitrary file uploads due to improper file type validation in the 'wpse_file_and_ext_webp' function. This allows authenticated attackers with Author-level access and above to upload arbitrary files on the affected site's server, potentially leading to remote code execution. The vulnerability is caused by inadequate validation of file types, which enables attackers to bypass security measures and upload malicious files. To mitigate this vulnerability, it is essential to review and update the WP Enable WebP plugin to ensure the latest security patches are applied.

Defensive priority

High priority for remediation due to potential for remote code execution

Recommended defensive actions

• Review and update WP Enable WebP plugin versions to ensure latest security patches are applied
• Restrict file uploads to only allow WebP files
• Monitor for suspicious file upload activity
• Consider replacing WP Enable WebP plugin with an alternative
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information on affected versions and remediation is limited. Further investigation is needed to determine the full scope of the vulnerability and to identify any additional mitigation strategies. The WP Enable WebP plugin's improper file type validation allows attackers to bypass security measures, making it essential to review and update the plugin to ensure the latest security patches are applied.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.