Description
Unauthenticated Remote Code Execution (RCE) in Everest Backup <= 2.3.13 versions.
Published: 2026-10-10
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Patch Immediately
AI Analysis

Impact

The vulnerability is an unauthenticated Remote Code Execution in Everest Backup versions 2.3.13 and earlier. An attacker can supply malicious payloads that are executed with the privileges of the web server, allowing arbitrary code execution and full compromise of the site. The weakness is a code injection flaw (CWE-94).

Affected Systems

Everest Backup plugin, developed by Everest Themes, version 2.3.13 or older. No other products are listed.

Risk and Exploitability

The CVSS score of 8.1 indicates high severity. EPSS data is not available, but the lack of a KEV listing suggests it is not yet widely published or exploited. Attackers can exploit the flaw remotely without any prior authentication. The vulnerability can be triggered by posting malicious requests to the backup endpoint, leading to code execution. Given the high CVSS and the potential for full site takeover, the risk is significant.

Generated by OpenCVE AI on October 10, 2026 at 20:31 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Everest Backup plugin to version 2.3.14 or later, which removes the code execution flaw.
  • Disable or restrict access to the backup functionality for untrusted users until the update is applied.
  • Verify that the web server and PHP processes run under least privilege and that backup files have appropriate file permissions to prevent unauthorized code execution.

Generated by OpenCVE AI on October 10, 2026 at 20:31 UTC.

Tracking

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Advisories

No advisories yet.

History

Sun, 11 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Sat, 10 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
Description Unauthenticated Remote Code Execution (RCE) in Everest Backup <= 2.3.13 versions.
Title WordPress Everest Backup plugin <= 2.3.13 - Remote Code Execution (RCE) vulnerability
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Patchstack

Published:

Updated: 2026-10-11T12:13:36.342Z

Reserved: 2026-04-07T10:59:21.050Z

Link: CVE-2026-39802

cve-icon Vulnrichment

Updated: 2026-10-11T12:05:41.779Z

cve-icon NVD

Status : Deferred

Published: 2026-10-10T20:16:33.613

Modified: 2026-10-13T13:28:15.717

Link: CVE-2026-39802

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-10T20:45:17Z

Weaknesses
  • CWE-94

    Improper Control of Generation of Code ('Code Injection')