CVE-2026-39802 everestthemes CVE debrief

Who should care

Defenders responsible for systems using the Everest Backup plugin should assess exposure and prioritize patching or mitigation

Why it matters

CVE-2026-39802 is a high-severity vulnerability in Everest Backup plugin versions up to 2.3.13, allowing unauthenticated remote code execution. Defenders should prioritize verifying exposure and applying patches or mitigations.

• Potential remote code execution
• Unauthenticated access to vulnerable systems
• High-severity vulnerability requiring immediate attention

Technical summary

CVE-2026-39802 is a high-severity vulnerability in Everest Backup plugin versions up to 2.3.13, allowing unauthenticated remote code execution. The vulnerability has a CVSS score of 8.1 and is classified as CWE-94.

Defensive priority

Defenders should prioritize verifying exposure and applying patches or mitigations.

Recommended defensive actions

• Verify exposure by checking if the Everest Backup plugin version is 2.3.13 or earlier
• Apply patches or mitigations provided by the vendor
• Monitor for potential exploitation attempts

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the scope of affected systems and potential impact.

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.