CVE-2026-15004 ninjateam CVE debrief

Who should care

WordPress administrators and users with Author-level access and above who use the FileBird – WordPress Media Library Folders & File Manager plugin should assess their exposure and take defensive actions.

Why it matters

The FileBird – WordPress Media Library Folders & File Manager plugin vulnerability allows authenticated attackers to inject arbitrary web scripts, which can lead to security breaches and data exposure.

• Authenticated attackers with Author-level access and above can inject arbitrary web scripts in pages.
• Injected scripts will execute whenever a user accesses an injected page.
• Defenders should verify the plugin version and update to a fixed version if necessary.
• Defenders should restrict access to the plugin's functionality to authorized users only.

Technical summary

The FileBird – WordPress Media Library Folders & File Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via image alt text in all versions up to, and including, 6.5.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability has a CVSS score of 5.4 and is classified as MEDIUM severity. Defenders should assess their exposure and take defensive actions, such as updating to a fixed version and restricting access to the plugin's functionality to authorized users only.

Defensive priority

Medium-priority defensive actions are recommended to address this vulnerability.

Recommended defensive actions

• Update the FileBird – WordPress Media Library Folders & File Manager plugin to a version that addresses the vulnerability.
• Restrict access to the plugin's functionality to authorized users only.
• Monitor for suspicious activity related to the plugin.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected versions. The FileBird – WordPress Media Library Folders & File Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via image alt text in all versions up to, and including, 6.5.6 due to insufficient input sanitization and output escaping. This information is based on the official CVE Program record and the NIST NVD detail page. Defenders should verify the plugin version and update to a fixed if

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.