CVE-2026-116057 KodCloud CVE debrief

Who should care

Defenders and administrators of KodExplorer installations should assess exposure and take immediate actions to verify and mitigate potential risks. This includes reviewing and restricting file upload functionality, monitoring for suspicious upload activity, and applying vendor patches if available. Additionally, defenders should prioritize verifying exposure of KodExplorer installations, especially in environments where file uploads are processed.

Why it matters

CVE-2026-116057 involves an unrestricted file upload vulnerability in KodExplorer's Online Editor Save Endpoint. Defenders should verify exposure, especially in environments processing file uploads, and prioritize applying patches or mitigating controls.

• Potential for remote exploitation of unrestricted file upload functionality
• Need for verification of KodExplorer installations for exposure
• Priority for applying patches or mitigating controls for file upload functionality
• Monitoring for suspicious activity related to file uploads

Technical summary

The vulnerability is located in the file `app/controller/editor.class.php` of KodExplorer's Online Editor Save Endpoint. This allows for unrestricted file uploads, which could be exploited remotely. The unrestricted file upload vulnerability in KodExplorer's Online Editor Save Endpoint poses significant technical risks, including potential for remote exploitation and need for verification of KodExplorer installations for exposure. The vulnerability affects KodExplorer versions up to 4.55 and has been publicly disclosed.

Defensive priority

Defenders should prioritize verifying exposure of KodExplorer installations, especially in environments where file uploads are processed. Immediate actions include reviewing and restricting file upload functionality, monitoring for suspicious upload activity, and applying vendor patches if available.

Recommended defensive actions

• Verify KodExplorer installations for exposure, especially in environments where file uploads are processed
• Review and restrict file upload functionality
• Monitor for suspicious upload activity
• Apply vendor patches if available
• Track exceptions and retest remediated assets
• 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

Evidence notes

The CVE Program record and NVD vulnerability detail provide official information on this vulnerability. Additional details are available from supplemental sources, including VulDB entries. The unrestricted file upload vulnerability in KodExplorer's Online Editor Save Endpoint has been publicly disclosed, and defenders should verify exposure, especially in environments processing file uploads, and prioritize applying patches or mitigating controls. The CVE record was published on 2026-10-25T15:30:13.590Z and has not been modified since

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.