CVE-2026-86240 liufee CVE debrief

Who should care

Defenders responsible for FeehiCMS installations, security teams, and vulnerability management teams should assess exposure and prioritize verification of affected versions. This includes reviewing system configurations, ensuring proper security controls are in place, and monitoring for potential exploitation attempts. Additionally, operators and administrators of affected platforms should be aware of the vulnerability and take appropriate measures to rem

Why it matters

Defenders should prioritize verifying the affected versions of FeehiCMS and assessing exposure in their environments due to the server-side request forgery vulnerability.

• Verify affected versions of FeehiCMS
• Assess exposure in environments
• Restrict access to the UEditor component
• Monitor for potential exploitation attempts

Technical summary

The vulnerability affects the function catchImage of the file backend/widgets/ueditor/Uploader.php of the component UEditor in liufee FeehiCMS up to 2.1.1. The manipulation of the argument source[] results in server-side request forgery, allowing remote attackers to potentially exploit the system. This issue highlights the importance of validating user input and securing file uploads. A patch or fix has not been provided by the vendor yet, despite early notification through an issue report. Defenders should prioritize verifying affected versions and assessing exposure.

Defensive priority

Defenders should prioritize verifying the affected versions of FeehiCMS and assessing exposure in their environments.

Recommended defensive actions

• Verify the version of FeehiCMS in use and assess exposure
• Review and restrict access to the UEditor component
• Monitor for potential exploitation attempts
• Implement compensating controls for exposed systems
• Conduct an asset inventory to identify potentially affected systems
• Establish a rollback/change window for remediation
• Track exceptions and retest remediated assets

Evidence notes

The CVE record and NVD entry provide details about the vulnerability in liufee FeehiCMS up to 2.1.1, affecting the function catchImage of the file backend/widgets/ueditor/Uploader.php of the component UEditor. The manipulation of the argument source[] results in server-side request forgery. Defenders should verify the affected versions and assess exposure in their environments. The project was informed of the problem early through an issue report but has not responded yet with a patch or fix. Official sources and additional references

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.